Ben Diskin

Nigel "Numbuh One...

Lauren Tom

Kuki "Numbuh Thre...

Dee Bradley Baker

Wallaby "Numbuh F...

Cree Summer

Abigail "Numbuh F...

Maurice LaMarche

Father (Voice)

RI

Ric Stoneback

Adult Hoagie

SO

Sonnie Brown

Adult Kuki

Jeff Bennett

Mr. Boss (Voice)

Jennifer Hale

Computer / Mrs. U...

Mark Hamill

Stickybeard (Voice)

Janice Kawaye

Sonia / Lee (Voice)

Tom Kenny

Mr. Dink / Knight...