Randy Cunningham: 9th Grade Ninja

Ben Schwartz
Randy Cunningham / The Ninja (voice)

Andrew Lewis Caldwell
Howard Weinerman (voice)

John DiMaggio
Hannibal McFist (voice)

Kevin Michael Richardson
Willem Viceroy III (voice)

Tim Curry
The Sorcerer (voice)

Ben Cross
The Sorcerer (voice)

Scott Menville
Bucky (voice)

Dave Wittenberg
Bash Johnson (voice)

Jim Rash
Principal Slimovitz (voice)

Cassie Scerbo
Heidi Weinerman (voice)

Grey DeLisle
Flute Girl (voice)

Sarah Hyland
Theresa Fowler (voice)

April Stewart
Marci McFist (voice)

Kari Wahlgren
Morgan (voice)

Megan Mullally
Mrs. Driscoll (voice)

Fred Tatasciore
Sundown (voice)

Laura Marano
Rachel (voice)

John Oliver
Coach Green (voice)

Joel McHale
First Ninja (voice)

Dee Bradley Baker
Julian (voice)