Albert Brooks Marlin (voice) Ellen DeGeneres Dory (voice) Alexander Gould Nemo (voice) Willem Dafoe Gill (voice) Geoffrey Rush Nigel (voice) Brad Garrett Bloat (voice) Allison Janney Peach (voice) Austin Pendleton Gurgle (voice) Stephen Root Bubbles (voice) Vicki Lewis Deb / Flo (voice) Joe Ranft Jacques (voice) Andrew Stanton Crush (voice) Elizabeth Perkins Coral (voice) Nicholas Bird Squirt (voice) Bob Peterson Mr. Ray / Additional Voices (voice) Barry Humphries Bruce (voice) Eric Bana Anchor (voice) Bruce Spence Chum (voice) Bill Hunter Dentist (voice) Jordan Ranft Tad (voice) Erica Beck Pearl (voice) Erik Per Sullivan Sheldon (voice) John Ratzenberger Fish School (voice) Carlos Alazraqui Additional Voices (voice) Alec Medlock Additional Voices (voice) Bob Bergen Additional Voices (voice) Paul Eiding Additional Voice (voice) Daryl Sabara Additional Voices (voice) Danny Mann Additional Voices (voice) Vanessa Marano Additional Voices (voice) Jeff Pidgeon Additional Voices (voice) Jennifer Darling Additional Voices (voice) Jack Angel Additional Voices (voice) Bobby Block Additional Voices (voice) Marc John Jefferies Additional Voices (voice)