Danny DeVito
George Johnson (voice)

Carrie Fisher
Alice Conway (voice)

Richard Masur
Michael Stevens (voice)

Rhea Perlman
Rose Johnson (voice)

Henry Winkler
Carl Conway (voice)

Christina Lange
Molly Conway (voice)

Hayley Carr
Darlene Kashitani (voice)

Lauren Taylor
Mary O'Connell (voice)

Matthew Brooks
Joey Fabrizio (voice)

Adrian Arnold
Tommy Johnson (voice)

Danny Henry
What's-His-Name (voice)

Joel Carlson
Li'l Dom Fabrizio (voice)

Nicholas Schiavoni
Kenny (voice)

Trish Balbert
Angie Henderson (voice)

Alexandra Balahoutis
Tina Edwina Farina (voice)

June Foray
Ms. McCullough (voice)

Shepard Menken
Additional Voices (voice)

R.J. Williams
Additional Voices (voice)

Lindsay Parker
Additional Voices (voice)