Anya Taylor-Joy

Marla

Jim Gaffigan

Del (voice)

Gabriel Bateman

Charlie

Adam Lambert

Emperor Maximus (voice)

Kenan Thompson

Bloodbones (voice)

Meghan Trainor

Fairy Godmother (voice)

Daniel Radcliffe

Rex Dasher (voice)

Paloma Rodríguez

Valera (voice)

Maddie Taylor

Glinara (voice)

Lino DiSalvo

Robotitron (voice)

Ryan S. Hill

6-Year-Old Charlie

Mariah Inger

Police Officer 1

Annakin Slayd

Police Officer 2

Harry Strandjofski

Security Guard

Dino Andrade

Scurvy Pete (voice)

Ian James Corlett

Dogsled Driver (voice)

Ben Diskin

Seadog (voice)

Kellen Goff

Salty (voice)

Dan Navarro

Viking Leader (voice)

Andrew Pifko

S.K.U.L.L. Scientist (voice)

Cindy Robinson

Nola (voice)

Keith Silverstein

Liam Brooks (voice)

Christopher Corey Smith

Western Outlaw (voice)

Spike Spencer

Various Voices (voice)

Karen Strassman

Dr. Greta Grim (voice)

Kirk Thornton

Ook-Ook (voice)