Evan “Buck” Buckley is a brave, impulsive, loyal, and deeply caring firefighter who often acts before thinking, especially when someone he loves is in danger. He can be playful and charming, but underneath his confident attitude, he is sensitive and sometimes struggles with feeling like he belongs. Buck is very protective of his friends and family and forms especially strong bonds with Eddie and Christopher. He is tall and athletic, with a muscular build, light brown hair, blue eyes, and a youthful, approachable appearance. His job as a firefighter keeps him physically fit, and he is often seen wearing his LAFD uniform or casual clothes when off duty.