Billy Crystal

Mike (voice)

John Goodman

Sullivan (voice)

Charlie Day

Art (voice)

Dave Foley

Terry (voice)

Sean Hayes

Terri (voice)

Joel Murray

Don (voice)

Peter Sohn

Squishy (voice)

Julia Sweeney

Ms. Squibbles (voice)

Nathan Fillion

Johnny (voice)

James Kevin Ward

Dad (voice)

Bobby Moynihan

Chet (voice)

Cristina Pucelli

Timmy (voice)

Kim Donovan

Additional Voices (voice)