|Family|| Diva (Queen/called 'Mother')|
Amshel (Chevalier Brother)
Solomon (Chevalier Brother)
Karl (Chevalier Brother)
Nathan (Chevalier Brother)
Lieutenant Colonel (formerly)
Blood+ Light Novel
|Japanese Voice||Toru Okawa|
|English Voice||David Rasner|
Initially, James Ironside was born into a poor family, and as a child lost his mother. He joined the the United States Army as the son of an important partner of Amshel and served in the coalition forces as a Lieutenant Colonel during the fall of Berlin in 1945 during the Second World War. After suffering from a near mortal wound, James was approached by Amshel, promising the soldier that he could save his life. In reality, Amshel was merely interested in having a person of African ancestry as a candidate for another Chevalier, much like Grigori, Martin, and Karl.  It can be assumed that this was the manner in how James was converted into a chevalier.
Growing up without a mother, James after becoming a Chevalier began to see Diva as his mother, believing that she brought life into his own again. 
From then on, he still retains his position in the military and progresses to a Naval Officer. Because of of his high ranking status, he was the Cinq Flèches' contact with the US military and is head of a naval aircraft carrier. As such, he possesses access to a number of military vehicles and weapons. He is was later appointed by Amshel as leader of the Corpse Corps was to take on the task of killing Saya.
James is most likely of African descent and despite being over 70 years old, appears to be in his mid to late 20s. He has a dark complexion with neatly cut jet black hair and deep dark brown eyes. James being a soldier usually has a calm and serious look on his face an also seems physically fit due to his training as soldier. He wears a black naval officer's uniform (also called Service Dress Blue) with his military service ribbons pinned to his right breast for almost all of the series. Before transforming into a chiropteran, James' eyes always glow a bright red.
In his chiropteran form, James' skin is a dark brown and much of his body is covered in spikes. He also has two horns protruding from his head and the sides of his jaw. His upper body is covered in armor-like skin, whereas his legs are the only vulnerable part as they are covered in fur. Like most chiropterans and chevailers, James' eyes glow a bright red in this form. He uses this form whenever facing off against Saya; the first time at Convent Gardens and later on Christina Island and New York City.
When first introduced, James is rather stoic in nature and is continuously noted for lacking a sense of humor. He also seems to be rather punctual as he is one of the first to show up at Solomon's Mansion, to which his brother muses how James is always on time. Though he is usually calm in nature, he does lose his cool after Nathan takes his locket, possibly because he feels others will mock him for how he sees Diva and is especially hinted at when Nathan teases him about his "Mama".
Despite his serious nature, he is shown to be exceptionally loyal, not only to Diva, but Amshel as well when he defends him from Solomon's suspicions about keeping secrets. Because of his strong devotion to Diva, he is left in charge to watch over her after Karl disappears, and later assigned the task of killing Saya. Keeping with his military background, James values strategy and displays impressive leadership skills when the Corpse Corps are first tested. Amshel even comments that James never makes a mistake, possibly hinting at a streak of perfectionism.
Ambitious and strong-willed, he displays great determination and confidence, especially where fighting Saya is concerned. He is also quite impatient as evidenced from when he wanted to immediately destroy Red Shield HQ upon learning of their whereabouts. In spite of his no-nonsense attitude, he has trouble refusing Diva's every wish, making it apparent that he lives only for her.
Like most of Diva's chevaliers, James sees Amshel as an older brother and exhibits unfailing loyalty to him, believing that whatever his older brother does he must always have a very good reason for it.
James and Solomon interact briefly a few times in the series, but from their first encounter, James is shown to be rude and rather blunt to his other older brother despite the latter's ever cheerful and friendly disposition. When Solomon questions Amshel's motives, James defends Amshel and becomes distrusting of his brother, musing if it is he who is actually the traitor . This attitude of course carries on later in the series, and James having been right all along vows to kill the one Solomon loves, believing that those who refuse to bow down to Diva deserve to suffer. He even takes pleasure in taunting and tormenting Solomon, mocking him for being Diva's favorite and promising that he'll bring Saya's head so that Solomon can kiss it, just like Salome did to John the Baptist. 
When Nathan and James are first seen together, James is subjected to teasing from his brother to which he retaliates by slicing off a chunk of hair when he flicks a coin at him. He then tells Nathan to stop being a drama queen, much to the latter's chagrin. After saving his life on Christina Island, Nathan notes how his brother isn't himself when James talks to him about war being like art.
While James and Karl are rarely seen interacting, James dislikes his brother believing that he is not only unstable and irresponsible, but an overall detriment to Diva and Amshel's plans.
James is extremely devoted to Diva, calling her 'mother' and will do anything to keep her out of harm's way. He considers her his beloved "Mother" and always carries her picture with him in a locket. His undying devotion to Diva and her status as his "mother" are a result of the tragic lose of his real birth mother. Overprotective of her, James states that he is only interested in capturing the creature that is to mate with her. Later on when Diva wants to visit the theater in London, James fearing for her safety refuses, but soon finds it hard to resist her wish and has the driver change course. After Diva no longer approves of him following his near-death experience, James begins to lose his sanity, almost much like that of Karl.
Unlike his chevalier brothers who believe Saya to be their future bride, James deems her as a threat to Diva and his family and only wishes to kill her.
James is first introduced in the beginning of of the second season when he checks on the condition of Diva's container with Solomon. With Karl nowhere to be found since his battle with Saya in Vietnam, he is left in charge of guarding the container by Solomon.
Later on, he and the rest of his chevalier brothers sans Karl are all reunited as they discuss what to do with Saya and her chevalier. He is greeted by Nathan who teases him as Solomon watches on and laughs. Amshel finally arrives and they are all informed that he has invited her to the Zoo. James comments that the place is a waste of time and what can anyone hope to accomplish there. When Amshel decides that Saya must die, James follows without question, believing her to be a threat.
James and Solomon are seen at the latter's mansion where they are watching Diva who rips off the head of a stuffed teddy bear. When Solomon asks if his brother feels that Amshel could be hiding something, James defends their older brother, saying that whatever he does, it must be for a good reason and even suggests that if it is Solomon who is actually a traitor.
After being informed of the Red Shield's headquarters, James is eager to strike them when he suggests to Amshel that he'd use an aircraft carrier. But Amshel refuses, saying that he didn't want to be any more indebted to the U.S. military especially since the incident with Diva's awakening and plans an attack in one month.
When Karl is left to watch over Diva in Solomon's Mansion and abruptly disappears with her, James is none too pleased with his brother's behavior and sets out to find Diva.
One year later, Cinq Flèches has created bio-mechanic soldiers with the purpose of slaying chiropterans. James is seen heading a live demonstration of their abilities to politicians of the U.S. and Britain alike. Pleased with the results, they agree to use them in their respective nations and already having military connections, James is left in charge of them.
One point where the Schiff return to their hideout, James and the Corpse Corps are hiding. When Moses discovers the creatures presence, James comments that it took hard work to create them and informs them that they were used in creating the Corps. After Moses reveals the face of one of the soldiers, James says that he was used as template, known as the Moses for the creation of the creatures, most likely due to his excellent combat skills. He returns to Amshel, telling him that he did not succeed in killing them all, to which his older brother says not to worry about them.
When he and his chevalier brothers assemble to discuss their future plans and new information of Saya's return, Amshel leaves James in charge of killing Saya, much to Karl's frustration. Nathan uses this opportunity to take James' Locket and tease him in front of his older brothers, to which a flustered James snatches it from him and takes his leave.
A few days later, he and Diva go off to attend a luncheon with the country's secretary, but Diva not liking the prospect of eating human food doesn't want to go and instead wishes to sing. James then reminds her that she isn't allowed to sing her song without Amshel's permission, but she gives him a pleading stare and begs him. Not able to resist his "mother's" wishes as well as his instinct as a Chevalier, he has the chauffeur change course to the Royal Opera House in Convent Gardens. There, they meet Nathan who teases James saying if he came to see him. James informs him that Diva requested to sing, to which Nathan jokingly warns that he is spoiling his "Mother". When Diva manages to stand atop one of the balconies in the theater, she purposely falls off, prompting a concerned James to catch her in his arms. She does nothing but laugh jovially, telling him that it was fun and they should do it again. Far from amused, James sighs to which Nathan comments that he has no sense of humor.
Diva eventually sings like she wished, which causes Saya and Hagi to arrive at the theater. Nathan greets them and introduces himself and their opponent as James who has transformed into a chiropteran. They do battle, and while James clearly has the upper-hand, Kai shows up and fires at the stage lights to temporarily subdue the chevalier. This does little as James emerges from the rubble and attacks Saya once more who manages to nearly crack his skin but gets knocked off the stage. He uses this opportunity to finally end her life, but just as he is about to finish her off Nathan stops James' attack when he holds his arm in place. Angry, James questions Nathan and demands him to back off, only for Nathan to reply that they aren't on stage. James yells that it isn't relevant, but Nathan ignores his brother and apologizes to Saya, promising her that he will provide a more appropriate stage where she can die. Losing his patience, James is almost about to say that he swears he'll kill Nathan but falters when the latter calmly asks if he was talking to him, then completely changes his attitude and says that he will kill him instead. James begrudgingly relents, saying that he will retreat for now.
The following day, news of Karl's death surfaces among the four chevaliers, and James having felt that Karl was already unstable, saw his death as convenient. Nathan then taunts if James would be calm if his "mama" died and takes his locket. Diva asks if he'll always protect her to which he kneels before her, affirming that he will. When Saya and her group arrive to Cristina Island to kill Diva, James was the only one there to greet them by firing spikes at them. He then informs her that he has prepared a grave for her on the island, the large hole that was once used to dispose of nuclear waste, and tells her that it would take years for her climb out of it. They have a hard time fighting James, to which he even notes that they are lacking in strategy because the Schiff let their emotions take over. Eventually, the Schiff do join the battle, thanks to Kai's efforts and manage to rip off an armored layer skin from James' arm. Saya goes for the opening and only manages to stab him when he then sudden;y grabs her, proclaiming that he will take her down with him. In the process, she drops her sword which slices the only vulnerable part of James' body; one of his legs. James dives into the ditch with Saya in tow as Kai reaches out and grabs her arm only to fall along with them. As things seem to look grim, Solomon appears in his chiropteran form and slices James' arm off, causing him to let go of the falling Saya and Kai. He falls into the ditch, presumed to be dead until Amshel is later seen informing a worried Diva that he sent Nathan to go after him.
James is seen recovering in a stasis chamber at Nathan's Residence as Diva sleeps next to him, and much of of his body is shown to be destroyed. His missing limbs are eventually replaced with parts from the Schiff, and Diva witnessing the new James, disproves of him, saying she doesn't want him anymore. The rejection of his queen causes him to change a great deal as he begins to lose his sanity and takes out his rage on the Schiff, whom he regards as inferior organisms to himself. This is especially true when he is seen talking to Nathan and compares war to art, to which the latter is surprised by but also legitimately concerned for his brother's mental state. When Karman develops the Thorn, James tries to manipulate Moses into killing Kai in exchange for Diva's precious blood which can be possibly used to cure the affliction.
Upon Solomon's imprisonment in Nathan's Residence, James visits him, taunting him about being "Diva's favorite beautiful boy" and how he resembled a slaughtered barn animal. He then threatens that once he kills Saya he will bring her severed head to Solomon so that he will kiss it like Salome did to John the Baptist. Solomon simply tells him to go to Hell to which James slaps Solomon and leaves the dungeon laughing manically. He then encounters Nathan who openly muses how he can smell his blood boiling, to which James replies that those who refuse to bow down to Diva don't deserve to live. As Kai and the other men arrive in Staten Island, James is seen standing atop the Brooklyn Bridge as he transforms for his final battle against Saya.
Late at night as Saya is asleep with Lulu, Mao and Julia watching over her, James barges through the window threatening to take her head. Saya finally wakes from her slumber and attacks James falling through the window. Because of her weakening state, James has the upper-hand on her and subdues Hagi and Lulu. After knocking her into a nearby car, he takes Saya's Sword and is about to finish her off when a weakened Solomon intercepts the attack. James then orders Solomon to get out of his away and tries to strike him, but the latter manages to evade the oncoming blows. He then comments how Solomon is pathetic for protecting Saya and how he does not have enough blood to transform into a chiropteran. However, Solomon's strong willpower allows him to free Saya's blade from James' grasp which cuts him in the process. James mocks how his brother now serves in the name of love and says Diva has no time for that, that for her it is chaos, despair and death. He then fires a barrage of projectiles that hit Saya, prompting Solomon to retaliate in vain as he is knocked back. As James closes in on Saya, his body begins to crack. Confused, he wonders what it is, to which Lulu confirms that they were thorns. While the thorns are spreading, Saya with Hagi's help, finally take down James when she stabs him through the skull. He falls to the ground, his body crystallizing as he calls out Diva's name. Ironically enough, Lulu comments that it must have been Moses and the others protecting them, even after their death.
James' first appearance in the manga is very brief as he and his other chevalier brothers are seen together raiding the Red Shield's base of operations with Diva. After Solomon goes to fetch Riku and Amshel disappearing elsewhere, James is left with Nathan and Diva to deal with Saya and Hagi. But when Diva starts singing, Saya goes into yet another berserk state, killing James with ease in the process. Nathan, shocked and distraught by his brother's death tries to remind Diva what happened, but she casually dismisses it to which the chevalier could do nothing but question her reaction.
It is revealed later on that he, along with Solomon and Nathan were nothing but mere pawns for Amshel that were only made into chevaliers because he wanted to, rather than Diva having any interest in them.
Manga vs. Anime
Unlike the anime where James is shown to have a significant role in the story and multiple battles with Saya, his role in the manga is very minimal and not much of his personality is explored as his very first appearance was also his last.
Military: As a member of the U.S. Armed Forces, James not only knows the ways of a soldier but also has numerous connections due to his leadership role.
Marksman: Possibly due to his military background, James has been shown to have near deadly accuracy when he flicks a coin at Nathan, slicing a lock of hair from the latter. This is also true of his chiropteran form when he fires sharp projectiles that always seem to hit their intended target.
Armored Skin: In his chiropteran form, James' skin hardens to the point where it can easily withstand bullets and blades, making him a tough and formidable foe to defeat.
Strength: James's strength easily surpasses the Schiff. In his chiroptertan form, his physical prowess is even more deadlier as he has given Saya and her allies a considerable amount of trouble in battle.
Speed: Like other Chevaliers, James possesses an agility that far outmatches the Schiff.
Transformation: Unlike his brothers before him, James was always seen transforming into a full chiropteran whenever he faced off against Saya.
Regeneration: As with all chiropterans, any wounds inflicted on James heal instantaneously.
Projectiles: Following the military motif, James in chiropteran form can fire sharp spike-like projectiles from his arms at long distances.
- In the first half of the series, James was almost always seen in his formal naval uniform, usually with a service cap.
- Later in the series, he dons a black suit with a single breasted jacket and navy blue tie.
- The name James means 'supplanter' in Old French and the dictionary definition of supplant is "to take the place of (another), as through force, scheming, strategy, or the like" which was to possibly coincide with the character's affinity for strategics.
- He is named after the historical figure James Rothschild.
- James is the only Chevalier that Saya and the Red Shield have not seen in human form, possibly out of his own personal preference to fight using his chiropteran transformation.