Suggestions by @younesmoussaoui

Deloris Van Cartier (Sister Mary Clarence)

as Nun in Space Jam a new Legacy with fictional characters

George Pig

as Pouncer in How To Train Your Dragon: Homecoming

Ron Weasley

as Pouncer in How To Train Your Dragon: Homecoming

Molly Weasley

as Valka in How To Train Your Dragon: Homecoming

John Darling

as Ruffrunner in How To Train Your Dragon: Homecoming

Wendy Darling

as Dart in How To Train Your Dragon: Homecoming

Duchess

as Light Fury in How To Train Your Dragon: Homecoming

Dennis (Hotel Transylvania)

as Tuffnut in How To Train Your Dragon: Homecoming

Regan MacNeil

as Ruffnut in How To Train Your Dragon: Homecoming

Dennis (Hotel Transylvania)

as Ruffnut in How To Train Your Dragon: Homecoming

Michael Afton

as Hiccup in How To Train Your Dragon: Homecoming

Nightmare Chica

as Astrid in How To Train Your Dragon: Homecoming

Ballora

as Astrid in How To Train Your Dragon: Homecoming

Vanny

as Astrid in How To Train Your Dragon: Homecoming

Circus Baby

as Astrid in How To Train Your Dragon: Homecoming

Mangle

as Astrid in How To Train Your Dragon: Homecoming

Glamrock Chica

as Astrid in How To Train Your Dragon: Homecoming

Roxanne Wolf

as Astrid in How To Train Your Dragon: Homecoming

Toy Chica

as Astrid in How To Train Your Dragon: Homecoming

Chica the Chicken

as Astrid in How To Train Your Dragon: Homecoming