Cast
Pete Davidson
Marmaduke (voice)
J.K. Simmons
Zeus (voice)
David Koechner
Phil Winslow (voice)
Mary Hart
EntertainMutt Tonight Host (voice)
Julie Nathanson
Dottie Winslow (voice)
Terri Douglas
Billy Winslow (voice)
Erin Fitzgerald
Barbara Winslow (voice)
Stephen Stanton
King Tut (voice)
Brian Hull
Guy Hilton (voice)
Sumalee Montano
Amy (voice)
Andrew Morgado
Henri / Phillipe (voice)
Chris Hackney
Announcer (voice)
Shelby Young
Shantrelle (voice)
Johnny Yong Bosch
Zhi (voice)
Nika Futterman
Juan Pedro (voice)
