Jesse the Jack Russell Terrier as Murphy

Paul Logan as Dirk Stevens

Cynthia Rothrock as Mom in Car

Jayden Hedden as Boy In Car

Sianmichelleguirao as Girl in Car

Cindy Lucas as Patty

John Callahan as TV Director

Errol Sack as Dog Trainer

Freddy John James as Joe

Jaret Sacrey as Fred

Zachary Cirino as Limo Driver

Dilan Patton as Isaac

Sydney Thackray as Sydney Harris

Jonathan Tysor as Ronnie

Patrick Geringer as Kyle

Walker Mintz as Peter Harris

Shadoe Stevens as Quinn Norcross

Andy Gates as Dad in Car

Andrea Lee Davis as Candace Smith

Heather Brook as Fire Rescue Girl #1

Tiffany Hughes as Fire Rescue Girl #2

Jolie Ledford as Maitlin Smith

Zondra Wilson as Calomay

Chuck Cirino as Dodge Rodgers

Lauren Parkinson as Lola Ginabrigida

Peter Sherayko as Main Ad Executivve

Eddie Jordan III as Ad Exec 1

Troy Fromin as Ad Exec 2

Jennifer L. Marshall as Gwen Harris

Corey Landis as School Teacher

Bryan Clark as Principal's Asst.

Mark Tietsort as Principal Callahan

Michael Gaglio as Checkers Man (as Mike Gaglio)

Michael Paré as Sheriff Evans

Judd Tyler Mintz as Peter's Dad

Steve Altman as Murphy (voice)

Mark Banning as Dog Owner (uncredited)

Jeff Gehron as Dog Owner (uncredited)

Brad Roth as Dog Owner (uncredited)

Ford Thaxton as TV Crew (uncredited)

Jim Wynorski as Guy at Dog Auditions (uncredited)