Penn and his team return to the underwater world and must find a royal fish named Rufus.
Thomas Middleditch
Penn Zero (voice)
Tania Gunadi
Sashi Kobayashi (voice)
Adam Devine
Boone Wiseman (voice)
Alfred Molina
Rippen (voice)
Larry Wilmore
Larry (voice)
Sam Levine
Phyllis (voice)
Lea Thompson
Vonnie (voice)
Gary Cole
Brock (voice)
Rosie Perez
Aunt Rose (voice)
Lenny Venito
Uncle Chuck (voice)
