Codename: Kids Next Door: Operation Z.E.R.O.

Ben Diskin

as

Nigel 'Numbuh ...

Lauren Tom

as

Kuki 'Numbuh 3...

Dee Bradley Ba...

as

Wally 'Numbuh ...

Cree Summer

as

Abigail 'Numbu...

Jason Harris

as

Chad Dickson (...

Grey DeLisle

as

Crazy Old Cat ...

Jeff Bennett

as

Mr. Boss / Mr....

Jennifer Hale

as

Fanny 'Numbuh ...

Mark Hamill

as

Stickybeard (v...

Tom Kenny

as

Knightbrace / ...

Maurice LaMarc...

as

Father (voice)

Matt Levin

as

Patton 'Numbuh...

Frank Welker

as

Monty Uno (voi...

Neil Ross

as

Grandfather (v...

Daran Norris

as

Count Spankulo...

Rachael MacFar...

as

Rachael T. 'Nu...

Ogie Banks

as

Sector Z Numbu...

Janice Kawaye

as

Sonya - Number...

Dave Wittenberg

as

Numbuh Zero / ...

Cam Clarke

as

Additional Voi...

Candi Milo

as

Additional Voi...