All Cast

Miley Cyrus

Miley Cyrus

Penny (voice)

Mark Walton

Mark Walton

Rhino (voice)

Susie Essman

Susie Essman

Mittens (voice)

Malcolm McDowell

Malcolm McDowell

Dr. Calico (voice)

Dara McGarry

Dara McGarry

(voice)

Randy Poffo

Randy Poffo

Thug (voice)

Sean Donnellan

Sean Donnellan

Penny's TV Dad (voice)