Fluke

Matthew Modine

Thomas P. Johnson / Voice of Fluke

Nancy Travis

Carol Johnson

Έρικ Στόλτζ

Jeff Newman

Max Pomeranc

Brian Johnson

Ρον Πέρλμαν

Sylvester

Τζον Πολίτο

Boss

Bill Cobbs

Bert

Federico Pacifici

Prof. Santini

Clarinda Ross

Jane, Tom's Secretary

Adrian Roberts

Night Guard

Bart Hansard

Day Guard

Deborah Hobart

Dogpound Vet

Libby Whittemore

Libby, the Housekeeper

Collin Wilcox Paxton

Bella

Σάμιουελ Λ. Τζάκσον

Rumbo (voice)

Sam Gifaldi

Young Fluke (voice)