On screen
Cast
12 credited performers
Jessica D. Stone
Stanley (voice)
Charles Shaughnessy
Dennis (voice)
Ari Meyers
Mom (voice)
Hynden Walch
Elsie (voice)
Artwork unavailable
Khylan Jones
Mimi / Marci (voice)
Hillary B. Smith
Paleontologist (voice)
Randy Quaid
Rockin' Rory (voice)
John Ritter
Great Uncle Stew (voice)
David Landsberg
Character not listed
Shawn Pyfrom
Character not listed
Philece Sampler
Character not listed
Artwork unavailable
Daniel Franklin Hatch
Character not listed