Danielle Panabaker

Callie

Matt O'Leary

Finn

George Finn

Jasper

John Rhys-Davies

Mr. Bezzeredes

Amin Joseph

Big Joe

Jason Spisak

Ivan

Sharon Maughan

Dr. Heidecker

David Figlioli

Marcus

Judith Drake

Mrs. Anderson

Mark C. Hanson

Dog Race Announcer (voice)