Joel McHale
Elliot (Voice)
Cody Cameron
Mr. Weenie (voice)
Georgia Engel
Bobbie (voice)
Jane Krakowski
Giselle (Voice)
Billy Connolly
McSquizzy (voice)
Crispin Glover
Fifi (voice)
Maddie Taylor
Deni / Buddy / Ian / Additional Voices (voice)
Steve Schirripa
Roberto (voice)
Fred Stoller
Stanley (voice)
Diedrich Bader
Rufus (voice)
Olivia Hack
Charlene (voice)
Nika Futterman
Rosie (voice)
Michelle Murdocca
Maria (voice)
Jacquie Barnbrook
Fifi's Owner (voice)
Kevin Michael Richardson
Additional Voices (voice)
Maurice LaMarche
Additional Voices (voice) (uncredited)
Jeff Bennett
Additional Voices (voice)
John Hans Tester
Additional Voices (voice)
Walter Jones
Additional Voices (Voice)
Scott Menville
Additional Voices (voice)