Auliʻi Cravalho as Ariel

Shaggy as Sebastian

Graham Phillips as Prince Eric

Amber Riley as "Daughters of Triton" Emcee

John Stamos as Chef Louis

Queen Latifah as Ursula

Jodi Benson as Self - Host / Ariel / Vanessa (voice)

René Auberjonois as Louis (archive footage) (voice)

Christopher Daniel Barnes as Prince Eric (archive footage) (voice)

Pat Carroll as Ursula (archive footage) (voice)

Paddi Edwards as Flotsam and Jetsam (archive footage) (voice)

Buddy Hackett as Scuttle (archive footage) (voice)

Jason Marin as Flounder (archive footage) (voice)

Kenneth Mars as King Triton (archive footage) (voice)

Edie McClurg as Carlotta (archive footage) (voice)

Will Ryan as Herald (archive footage) (voice)

Frank Welker as Max (archive footage) (voice)

Ben Wright as Grimsby (archive footage) (voice)

Samuel E. Wright as Sebastian (archive footage) (voice)

Jessica Rotter as Chorus (voice)

Leah Allers as Chorus (voice)

Alvin Chea as Chorus (voice)

Allie Feder as Chorus (voice)

James Hayden as Chorus (voice)

Baraka May as Chorus (voice)

Jamal Moore as Chorus (voice)

Holly Sedillos as Chorus (voice)

Fletcher Sheridan as Chorus (voice)

Stephen Van Dorn as Chorus (voice)

Laura Dickinson as Chorus (voice)

Shannon Beach as Aerialist

Sagiv Ben-Binyamin as Aerialist

Anthony Gonzalez as Aerialist

Tania Holt as Aerialist

Sara Von Gillern as Aerialist

Darielle Williams as Aerialist

Miah Blake as Ensemble

Tiffany Daniels as Ensemble

Gabe De Guzman as Ensemble

Stevie Dore as Ensemble

Lynda Piedmonte Durell as Ensemble

Charles Fournier as Ensemble

Nick Garcia as Ensemble

Jason Glover as Ensemble

Christina Glur as Ensemble

Noah Jackson as Ensemble

Hailey Jade Panchame as Ensemble

Travis 'T.J.' Johnson as Ensemble

Dominique Kelley as Ensemble

Yoori Kim as Ensemble

Amanda LaCount as Ensemble

Anthony Marciona as Ensemble

Ainslee McAlees as Ensemble

Scott Myrick as Ensemble

Cassidy Noblett as Ensemble

Renda Pettis as Ensemble

Kayla Jenee Radomski as Ensemble

Melanie Moore as Ensemble

A.J. Raguindin as Ensemble

Jonathan Redavid as Ensemble

Nateli Ruiz as Ensemble

William B. Simmons II as Ensemble

Britt Stewart as Ensemble

Jana Thompkins as Ensemble

Alyson Van as Ensemble

Alex Wong as Ensemble

Bagel as Ensemble

Artie Esposito as Puppeteer

Scott Silson as Puppeteer

Dorien Davies as Puppeteer

James Murray as Puppeteer

Sarah Berman as Puppeteer

Rachel Herrick as Puppeteer

Brett O'Quinn as Puppeteer

Jess McKay as Puppeteer