Zoey

Marie

Ignacio

Galen

Ollie

Tala

Quinn

Bodie

Teacher

British

Vampire Bodyguard

Francis

Woman

Bodyguard

The Narrator

African lady

Soft Bubbly

Southern

Robot

Hailey

French

Hood

Indian Girl Accent

A French Girl

Male Russian Accent

Irish

Fiona Frost (フィオナ・フロスト, Fiona Furosuto?) is one of the recurring characters of the SPY x FAMILY series. She is a spy for WISE who acts under the codename "Nightfall" (〈夜帷とばり〉, <Tobari>?). She works undercover as an office worker at Berlint General Hospital to support Loid Forger's cover story.

Japanese
フィオナ・フロス
Alias(es)
"Nightfall" (〈夜帷とばり〉, <Tobari>?) (Agent codename)
Nafalia Foney (トバリー・フォニー, Tobarī Fonī?) (Tennis competitor)
Grumpy Lady (無愛想な あねーちゃん, Buaisōna Ane-chan?) (by Franky Franklin)

Fiona Frost

Yor's Rival (you're Loid forger AKA Twilight)