Kumail Nanjiani Mack Mallard (voice) Elizabeth Banks Pam Mallard (voice) Caspar Jennings Dax Mallard (voice) Awkwafina Chump (voice) Carol Kane Erin (voice) Keegan-Michael Key Delroy (voice) Danny DeVito Uncle Dan (voice) David Mitchell GooGoo (voice) Isabela Merced Kim (voice) Carlos Alazraqui Additional Voices (voice) Brock Baker Additional Voices (voice) Gregg Berger Additional Voices (voice) Steve Blum Additional Voices (voice) Kimberly Brooks Additional Voices (voice) Rodger Bumpass Additional Voices (voice) Corey Burton Additional Voices (voice) Sean Chiplock Additional Voices (voice)