Jessie T. Usher
Quinn (voice)
Patrick Warburton
Geraldo (voice)
Kristen Schaal
Beth (voice)
Sharlto Copley
Switch (voice)
Camille Mana
Jing (voice)
John Kani
Brick (voice)
Dolph Lundgren
Dolph (voice)
Seal
Seal Seal (voice)
Matthew Rhys
Grimes (voice)
J.K. Simmons
Claggart (voice)
Bumper Robinson
HMMF Animal Handler / Chum (voice)
Richard Steven Horvitz
Snap (voice)
Catherine Taber
Seals (voice)
Rodger Bumpass
Sharks (voice)
Bill Farmer
Anjali Bhimani
Crabby Stabby / Seals / Sharks (voice)
Bob Bergen
Seals / Octopi / Dolphin Sounds (voice)
Jenny Yokobori
Geraldo's Watch / Seals / Octopi (voice)
Jan Johns
Mayday / Geraldo's Watch / Seals / Sharks / Octopi (voice)
Kate Micucci
Diving Dee (voice)
Daran Norris
Roger / Radio DJ (voice)
Secunda Wood
Scarlet (voice)
Rick Zieff
Crunch (voice)
Vivienne Rutherford
Sam (voice)
Julian Smith
Benji (voice)
Matthew Mercer
Dave / Sharks (voice)
Julia Anastasopoulos
Tour Guide (voice)
Greig Cameron
Harbor Seals (voice)
Rob van Vuuren
Louw Venter
Tarryn Wyngaard
Jody J. Abrahams
Guards (voice)
Zolani Mahola