Bleu will play himself, star of the High School Musical franchise.
Donnelly will play Val, a confident and funny college student and longtime camper-turned-counselor-in-training, who is ready to choreograph the summer production of Frozen.
Earles is Dewey Wood, the stone-faced, killjoy of a camp director of Camp Shallow Lake.
Adrian Lyles is Jet, Camp Shallow Lake’s mysterious new kid.
Bell plays Maddox, a bright-eyed, quick-witted “techie” who always follows the rules.