TV-Series
Description
Gajeel Redfox is an Iron Dragon Slayer transported 400 years forward through the Eclipse Gate to battle Acnologia. Trained by the dragon Metalicana, he resented his foster parent's disappearance on July 7, X777, fueling bitterness. In the modern era, he joined Phantom Lord, becoming an S-Class Mage under Master Jose Porla. He exhibited cold ruthlessness, spearheading the guild war against Fairy Tail by destroying their guildhall and crucifying Shadow Gear members (Jet, Droy, and Levy McGarden) on a tree, branding them with Phantom Lord's mark. He also tortured captured Lucy Heartfilia. Natsu Dragneel defeated him after consuming fire from Lucy's spirit Sagittarius, forcing Gajeel to confront parallels in their dragons' departures.

After Phantom Lord disbanded, Gajeel lived isolated until Fairy Tail's master, Makarov Dreyar, offered him membership despite past animosity. Makarov conditioned acceptance on personal redemption, a challenge Gajeel embraced. His integration faced hostility, particularly from Shadow Gear and Erza Scarlet. Early efforts included misguided acts like chaining Mirajane Strauss to perform music, but he gradually showed loyalty. A critical shift came when he shielded Levy McGarden from Laxus Dreyar's lightning during the Battle of Fairy Tail. Concurrently, he served as Makarov's double agent, infiltrating the dark guild Raven Tail led by Ivan Dreyar to report on their activities, proving his strategic value.

Gajeel possesses a tall, muscular build with spiky black hair and red eyes featuring slitted pupils. Numerous facial piercings substitute for eyebrows: three above each eye, two beside his nose, and two on his chin. His ears bear multiple earrings, and his forearms display scars and studs. He initially bore Phantom Lord's guild mark on his right shoulder, receiving Fairy Tail's black mark on his left shoulder upon joining. Typical attire includes a studded black tunic, wristbands, boots, and a wing-like ornament over his right shoulder. Outfits evolved over time, including a trench coat during the Grand Magic Games and a simpler tunic with a tattered scarf post-X791.

Gajeel's personality evolved from guild-dedicated callousness to fierce loyalty toward Fairy Tail. Early traits included a short temper and combat-driven frustration, often clashing with Natsu. Though initially claiming no need for friends, he formed bonds through tenacity and vulnerability, like anguish over lacking an Exceed partner. His comedic side emerged through singing attempts and reactions to Mirajane's transformations. He demonstrated honor by accepting retribution from Shadow Gear and emotional openness, tearfully embracing Panther Lily after reuniting in Earth Land. He experiences motion sickness common to Dragon Slayers. His unique laugh is rendered as "Gi Hi Hi Hi," and he exhibits strong protective instincts, especially toward Levy and Lily.

Gajeel wields Iron Dragon Slayer Magic, consuming iron for strength, transforming his body into iron or steel, and creating metal weapons. Key techniques include Iron Dragon's Roar (a metal shard tornado), Iron Dragon's Lance (extending arms into whipping poles), Demon Logs (launching spearheads), and Iron Dragon's Scales (iron-coated defense). Absorbing carbon allows temporary, toxic use of steel for greater potency. In high-stakes battles, he accesses Dragon Force for amplified power, as against Laxus or Rogue Cheney. Against Rogue, he consumed shadows to enter Iron Shadow Dragon Mode. He excels in hand-to-hand brawling, leveraging physical strength and speed, complemented by enhanced senses like smell for tracking.

Relationships define Gajeel's growth. His bond with Levy McGarden shifted from antagonist to protector and eventual romantic partner; he shielded her from Laxus and expressed devotion with statements like "It's hard finding someone so small, so don't leave my side." They had a child in X793. Panther Lily, an Edolas Exceed, became his loyal partner after Gajeel rescued him; their Earth Land reunion moved Gajeel to tears despite Lily's size reduction. His rivalry with Natsu Dragneel softened into mutual respect, shown through teamwork against threats like Laxus or Faust. He shares a foundational connection with fellow first-generation Dragon Slayers, comforting Wendy Marvell during crises. Juvia Lockser, his sole Phantom Lord ally, aided his Fairy Tail integration, while Makarov's mentorship anchored his redemption.

Key development arcs include infiltrating Raven Tail to provide intelligence to Makarov, aiding against Edolas' tyranny (freeing Erza and Gray, befriending Lily), and competing in the Grand Magic Games (notably defeating Rogue Cheney). Post-Fairy Tail's temporary disbandment, he became captain of the Magic Council's Custody Enforcement Unit, targeting dark guilds like Avatar with Levy and Lily before returning. During the Alvarez Empire arc, he sacrificed himself against Bloodman to protect Levy, though he survived. In the 100 Years Quest, he continued missions while exploring unresolved tensions with Metalicana, whose soul resided in his body to stall dragonification.