Gordon Agrippa hails from the Agrippa Family, commoners notorious for their Curse Magic. His grim visage features pale skin contrasted by black eyeshadow, lipstick, and nail polish, alongside short slicked-back black hair, red eyes, and absent eyebrows. He typically wears a dark grey jacket with red trimming, matching pants tucked into knee-high black boots, a black belt, and the Black Bull robe with its peaked cap. An alternate "otaku" appearance showcases denim, a sleeveless shirt, glasses, and a bandana. Initially communicating through near-silent mumbles and avoiding sunlight, Gordon's social struggles often unintentionally unsettle others. Yet beneath this lies profound empathy and a fierce longing for friendship. He consistently voices heartfelt praise for Black Bull comrades—though frequently unheard—and displays sharp perceptiveness toward personalities, even antisocial figures like Gauche. His resolve crystallizes in pivotal moments, enabling clear speech when defending allies or facing threats. Isolated in childhood due to his family's dark reputation, Gordon departed after obtaining his grimoire and joined the Black Bulls, gradually embracing them as kin. Key early moments include witnessing Asta's initiation and missing missions due to sunlight sensitivity—a regret that surfaced after exclusion from the Seabed Temple operation. He actively aids squadmates, collaborating with Gauche to research curses for healing Asta's arms—an effort that temporarily transformed both into otakus. When Rades Spirito assaulted the Black Bulls base, Gordon fought alongside Grey and Henry, deploying Poison Magic to annihilate enhanced corpses. His dedication solidified while reflecting on the base's role as a sanctuary. During the elf reincarnation crisis, Gordon battled possessed knights, merging Poison Magic with Grey's transmutation to craft defensive cotton clouds and mirrored poison curtains. He shielded Asta against elves like Drowa and aided in shattering enchantments via the Demon-Destroyer Sword. After Gauche's rescue, he joined a group hug celebrating their bond. Later, Gordon journeyed home with Asta, Gauche, and Grey to study devils and curses. His father Nathan unveiled their hidden mission: developing cures. This quest uncovered a potent curse in the Heart Kingdom. Gordon stayed to master Curse Magic, eventually refining Poison Magic into medicinal spells that amplify allies' powers. He reunited with the Black Bulls for the Spade Kingdom mission to rescue Yami, participating in the castle assault. His magic centers on Poison Magic, conjuring toxins for techniques like Verbotenes Obst and Violett Schirm. Curse Magic supplements effects, such as Aufwachen Dachs. Through training, he adapted his magic into supportive medicine. Combat sees him synergize with allies—augmenting spells via the Black Bulls base cannons or collaborating with Grey for transmutation. In the spin-off ONA "Mugyutto! Black Clover," Gordon appears as a supporting character, though specific details about his role or development in this series are not provided in the available sources.