3 Ninjas Knuckle Up Cast

Victor Wong plays Grandpa, the wise martial arts instructor and grandfather to the three young ninjas.

Charles Napier portrays Jack, a tough and no-nonsense FBI agent who helps the young ninjas in their mission.

Michael Treanor plays Rocky, one of the three young ninja brothers trained in martial arts by their grandfather.

Max Elliott Slade portrays Colt, one of the three young ninja brothers with exceptional martial arts skills.

Chad Power plays Tum Tum, the youngest of the three ninja brothers known for his love of food and humorous antics.

Crystle Lightning portrays Jo, a Native American girl who joins forces with the young ninjas to protect her land.

Patrick Kilpatrick plays J.J., the main antagonist in the film who leads a group trying to take over Jo's land.

Don Shanks portrays Charlie, one of J.J.'s henchmen who gets involved in the conflict with the young ninjas.

Sheldon Peters Wolfchild plays Lee, a Native American man who assists Jo and the young ninjas in defending their land.

Nick Ramus portrays Chief Roundcreek, a respected tribal leader who seeks to protect his people's rights and land.

Donal Logue plays Jimmy, a character involved in the schemes orchestrated by the main antagonist J.J.

Vincent Schiavelli portrays The Mayor, a local politician caught up in the conflict over the land and resources.