The Backstreet Boys- Themselves

Faith- Billie Lourd

Ginger- Karen Fukuhara

Nadine- Marsai Martin

Jessie- Cierra Ramirez

Dorothy- Lily James

Princess Zanell- Mae Whitman

Cristian Brand- John Legend

Big G- Danny DeVito

Vincenzo- Roshon Fegan

Lewis- Scott Menville

Aunt Mckenzie- Moira Quirk

Uncle Winston- Ricky Gervais

Emperor Zator- Kevin Michael Richardson.

Zaid- Tom Kenny

Zora- Grey Griffin

Mr. Guidi- David DeLuise

Mrs. Guidi- Pamela Adlon

Officer Alfonso- Bobby Moynihan

Zio Antonio- Jake DeVito

Hone-Shannon Chan-Kent

Myla- Kellie Pickler

Lewis Hightower II- Clancy Brown

DJ Jalen- Shameik Moore

Raquel and Rosalee- Ava Jaymes McLean

Rintaro Kazuma- Randall Park

Hiruma Kazuma- Kelly Hu

Additional Voices

Grey Griffin, Cree Summer, Dee Bradley Baker, Collin Dean, Alan Tudyk, Tom Kenny, Lauren Tom, Jill, Talley, Lara Jill Miller, Jessica DiCicco, Kerry Williams, Kayzie Rogers, Ted Lewis, Eric Stuart, Eden Sher, Adam McArthur, Candi Milo, Eric Bauza, Catherine Tate, Keone Young, James Sie.