Gracen Newton
voices Flounder
Elizabeth Phoenix Caro
voices Lucia
Cruz Flateau
voices Fernie
Taye Diggs
voices King Triton
Amber Riley
voices Ursula
Dana Heath
voices Ayanna
Jessica M. Adams
voices Alanna
Parvesh Cheena
voices Ravi
Madelyn Skyler Tee
voices Bembe
Ron Funches
voices Delfino
Ryan Lopez
voices Remy
Amari McCoy
voices Jewels
Danni Washington
voices Chantale
Hunter Phillip Corleto
voices Calamar
Melissa Villaseñor
voices Navi
Alanna Ubach
voices Ms. Cuttles
Somali Rose
voices Clamila
Gary Anthony Williams
voices Wahoo Fish
Steve Moore
voices Sea Bunnies
Martin Wichmann Andersen
voices Axyl
Carlos Alazraqui
voices Sanka
Jeff Bennett
voices Duke of Clownfish
Gary Anthony Williams
voices Hermès
Jeremiah Felder
voices Tri-Tri
Ayush Rajmachikar
voices Ronaldo
Kevin Michael Richardson
voices Montez
Parvesh Cheena
voices Squid
Rizwan Manji
voices Revi
Kevin Michael Richardson
voices Henrick
Abril Belido
voices Gabi Guppy
Grey DeLisle
voices Mer-Mom
Emma Rodriguez
voices Gigi Guppy
Alanna Ubach
voices Marla
Gary Anthony Williams
voices Atlantican
Grey DeLisle
voices Atlantican
Grey DeLisle
voices Abuelita Alma
Jeff Bennett
voices Park Attendant
Jenifer Lewis
voices Nana Xola
Yanic Truesdale
voices Chef Louis
Yvette Nicole Brown
voices Aquatica
Grey DeLisle
voices Sheila
Yvette Nicole Brown
voices Akiko's Mom
Jeff Bennett
voices Clam
Ayush Rajmachikar
voices Mer-Kid
Grey DeLisle
voices Crab
Grey DeLisle
voices Serena Shrimply
John Eric Bentley
voices Marcel
Eric Bauza
voices Merman
Nicolas Roye
voices Manuel
Grey DeLisle
voices Clam
Vasthy Mompoint
voices Mirlande
Kimberly Harris
voices Merfolk
Carlos Alazraqui
voices Parrot Fish
Lucia Arguedas
voices Audra