3 Ninjas Knuckle Up

Victor Wong

Grandpa

Charles Napier

Jack

Michael Treanor

Rocky

Max Elliott Slade

Colt

Chad Power

Tum Tum

Crystle Lightning

Jo

Patrick Kilpatrick

J.J.

Don Shanks

Charlie

Sheldon Peters Wolfchild

Lee

Nick Ramus

Chief Roundcreek

Donal Logue

Jimmy

Vincent Schiavelli

The Mayor

Selina Jayne

Jo's Mother

Kait Lyn Mathews

Theresa

Don Stark

Sheriff

Dennis Holahan

EPA Man