Auli'i Cravalho
Ariel
Edie McClurg
Carlotta (voice)
Amber Riley
"Daughters of Triton" Emcee
Queen Latifah
Ursula
Jodi Benson
Herself / Ariel / Vanessa (voice)
Pat Carroll
Ursula (voice)
Graham Phillips
Prince Eric
Kenneth Mars
King Triton (voice)
John Stamos
Chef Louis
Buddy Hackett
Scuttle (voice)
Shaggy
Sebastian
Christopher Daniel Barnes
Prince Eric (voice)
Paddi Edwards
Flotsam and Jetsam (voice)
Samuel E. Wright
Sebastian (voice)
Will Ryan
Herald (voice)
Ben Wright
Grimsby (voice)
Jason Marin
Flounder (voice)