On screen
Cast
22 credited performers
Julie Andrews
Ms. Julie
Giullian Yao Gioiello
Gus
Frankie Cordero
Spike (voice)
Jennifer Barnhart
Riley (voice)
Tyler Bunch
Hugo (voice)
Stephanie D'Abruzzo
Peri (voice)
Dorien Davies
Fizz (voice)
John Tartaglia
Hank (voice)
John E. Kennedy
Toby (voice)
Idina Menzel
Character not listed
Chris Colfer
Character not listed
Josh Groban
Character not listed
Alec Baldwin
Character not listed
Robert Fairchild
Character not listed
Tiler Peck
Character not listed
Sara Bareilles
Character not listed
Ellie Kemper
Character not listed
Artwork unavailable
Joshua Bell
Character not listed
Bill Irwin
Character not listed
Tituss Burgess
Character not listed
David Hyde Pierce
David Hyde Pierce
Carol Burnett
Mrs. Brightful