9-1-1 (118)

• Athena Grant-Nash: Strong-willed, authoritative sergeant; protective of family/city.

• Robert “Bobby” Nash: Steady, protective father figure; responsible for the team's well-being.

• May Grant: Resilient, independent daughter.

• Harry Grant: Opinionated son; impulsive, struggles with schooling; desires stability & family connection.

• Henrietta “Hen” Wilson: Lesbian, calm, intelligent, competent anchor for the 118; sometimes stubborn/overhelpful.

• Karen Wilson: Lesbian, protective of family; intelligent and strong-willed.

• Denny Wilson: Bright, cheerful son; grounding force for family; fiercely protective of Mara. Impulsive, independent, and a mature demeanor.

• Mara Wilson: Daughter; resilient due to Hen & Karen’s love & Denny's support.

• Howard “Chimney” Han: Reliable, humorous mediator and loyal friend to the group. Emotional support role.

• Maddie Buckley: Empathetic and resilient 911 operator connecting with callers under pressure. Intense strength under pressure.

• Evan “Buck” Buckley: Evolved from impulsive/reckless to teachable, empathetic team member seeking validation.

• Edmundo “Eddie” Diaz: Disciplined, stoic, devoted father to his son, Christopher Diaz.

• Christopher Diaz: Sweet-natured, loving, and forms close bonds especially with Eddie and Buck; remarkable empathy despite cerebral palsy challenges.

Appearance: — Athena Grant-Nash: Black woman in her 50s/60s with a dark brown complexion, sharp eyebrows, and high cheekbones. Hair/Eyes: Short hair (typically above the jawline) and brown eyes. Height/Build: Average height, in good shape

— May Grant-Nash: African American, typically seen with long, dark, often braided or straightened hair. Eye Color: Dark brown/brown. Height: Approximately 5′ 5″ (1.65 m).

— Harry Grant-Nash: African American, characterized by a youthful, often curly-haired, slimmer build. Eye Color: Brown Height: Average/Tall

— Robert “Bobby” Nash: Light brown hair, often graying at the temples, with light brown eyes. He is described as having "hot dad" vibes. Height/Build: Tall (roughly 3cm shorter than Buck).

— Henrietta “Hen” Wilson: Black woman with high cheekbones and brown eyes. Hair/Style: Typically wears a bald head, wears stylish prescription glasses. Height/Build: Taller than Athena and Chimney.

— Karen Wilson: Karen is characterized as a professional, stylish, and intelligent woman, often seen in smart-casual wear, boho-style tops, or professional attire. She wears glasses and is known for having a "warm" and "vulnerable" demeanor. Hair: Typically dark/black, often styled in various natural or professional styles. Eye Color: Dark brown. Height: Average Style: Karen has a distinct, fashionable style often highlighted in scenes, with a preference for colorful, patterned blouses and, at times, elegant dresses.

— Denny Wilson: A young Black boy with short black hair and a generally athletic build as he has grown up in the series. He often appears in casual, school-aged clothing. Eye Color: Brown Height: Average

—Mara Wilson: A young Black girl with dark hair, often styled in braids or natural styles. She has a gentle, sometimes somber, appearance reflecting her storyline as a foster child. Eye Color: Dark brown/black. Height: Average

— Howard “Chimney” Han: Asian man with a lean build and brown eyes. Hair/Style: Short, styled hair. Height/Build: Shorter than the other men in the 118.

— Maddie Buckley: White woman with dark brown hair (length varies) and brown eyes. Distinctive Features: A broad smile that causes her eyes to crinkle. Height/Build: Shortest character in the main cast.

— Evan “Buck” Buckley: Tall, muscular build, often described as the tallest in the cast, with blonde hair (sometimes appears light brown/strawberry blonde) and blue eyes. Distinctive Features: Full pink lips, curly hair (often styled with product), and a reddish birthmark between his left eye and eyebrow. Height/Build: Tall, athletic.

— Edmundo “Eddie” Diaz: White Latino with a lean, highly fit, and muscular build (often noted as having the best physique in the cast). He has dark brown/black hair and dark brown eyes. Distinctive Features: Strong jawline, broad smile, and a small mole below his left eye. Height/Build: Shorter than Buck and Bobby.

— Christopher Diaz: A young boy with light hair and brown eyes, who is seen growing up over the series.

Denny and Mara are adopted

Buck and Maddie are siblings

Bobby is the captain of the Firestation 118

Henrietta "Hen" Wilson: Paramedic/firefighter.

Howard "Chimney" Han: Experienced firefighter/paramedic.