Kira Kosarin Phoebe Jack Griffo Max Addison Riecke Nora Diego Velazquez Billy Maya Le Clark Chloe Chris Tallman Hank Rosa Blasi Barb Dana Snyder Voice of Dr. Colosso Paul F. Tompkins King Crab Michael Wayne Foster Strongdor Jamieson Price Dark Mayhem James Hong Grandpa Giddy Harvey Guillén Blobbin Helen Hong Mrs. Wong Kenny Ridwan Gideon Audrey Whitby Cherry Jake Borelli Wolfgang Tanner Stine Oyster Jeff Meacham Principal Bradford Daniele Gaither President Kickbutt Brandon Papo V-Teamer #1 / Dark Mayhem Jr. Brittany Bardwell V-Teamer #2 / She-Crab Adam Kulbersh Mr. Schechter Valerie Loo Beth Jennifer Hale Voice of Thunder Monitor Robin Atkin Downes Voice of T-Force Assistant