Edmundo "Eddie" Diaz: 5 feet 11 inches his build is athletic and muscular, often joked about (such as Buck calling him an "eight pack" in an affectionate manner), brown hair, brown eyes and typically clean-shaven due to LAFD safety rules against beards. Eddie frequently wears rugged leather jackets, suede jackets, and utility shirt-jackets that give him a tough, grounded first-responder look off-duty. His off-duty wardrobe leans heavily on classic plaid button-downs, western denim shirts, simple fitted crewneck t-shirts, and basic polos. He sticks to earthy and neutral tones like black, brown, navy, dark gray, and olive green. His background as an army combat medic in Afghanistan makes him highly resourceful, practical, and cool-headed during critical life-or-death emergencies. He was raised to suppress his feelings and act as a tough provider, he tends to process stress internally and avoid showing weakness, he is a dedicated, loving father to his son, Christopher who's now in college and husband to Buck, often putting his family at the center of his world. While it takes time for him to let people in, he forms deep, unshakeable bonds with his Station 118 colleagues, especially his husband Evan "Buck" Buckley, his fluent in both Spanish and English having grown up in El Paso, TX. He's Mexican on his father's side and Swedish on his mom's side, he will call Buck by his given name when Buck's spiralling, his approach to parenting reflects his upbringing and his growth as a person heavily for the most part, he means business and won't do the whole arguing with his kids thing because he has the final word, always but he's compassionate and makes logical decisions

Evan "Buck" Buckley: He has short brown hair, often styled casually or slightly messy, blue-green eyes. He's around 6'2 Tall and athletic, fitting his role as an active LAFD firefighter, he has a prominent birthmark on the left side of his face (specifically around his eye/cheek area). Usually seen in casual wear off-duty or in his dark blue LAFD station uniform and protective turnout gear while on the job. Off shift he often wears Fitted t-shirts, henleys, and casual button-downs layered under casual jackets, bombers, or plaid flannels. Durable jackets, denim, and practical casual wear suited for a firefighter off duty. Standard LA firefighter navy station wear or uniform shirts on the clock, his hair is often styled with signature natural curls and a relaxed, approachable look. Buck often acts before he thinks, leading to dangerous or chaotic situations on and off the job. He wears his heart on his sleeve and cares fiercely for his family, friends, and coworkers at Station 118. Much of his early bravado and womanizing behavior in his early adulthood stemmed from childhood trauma and feeling abandoned or invisible to his parents. He faces major physical and emotional hurdles; like surviving a tsunami and lightning strikes and continuously bounces back to support the people he loves. Through the mentorship of the late Bobby Nash and bonds with teammates like his husband Eddie Diaz and friend Hen Wilson, Buck learns true responsibility and emotional vulnerability, his maturity expanded his depth further as he navigated new milestones, including exploring his sexuality, parenthood, his marriage to Eddie Diaz, and coming to terms with his past. He was born in PA and he takes parenting seriously his first responder instincts bleeding into his parenting style, often fair but firm and he often doesn't take shit from anyone including his kid and husband, he's responsible and usually unwilling to compromise on decisions that affect those he cares for