Suggestions by @user_1564

Ben Stiller

as Alex in Madagascar

Kyle Stanger

as Nick Mohammed in Christopher Robin

Nicole Dubuc

as Writer in Christopher Robin

Dorothy McKim

as Producer in Christopher Robin

Andy Sturmer

as Composer in Christopher Robin

Katharine Holabird

as Millie in Angelina in the Haunted Mansion

Helen Craig

as Maude in Angelina in the Haunted Mansion

Roger Moore

as Doorknocker in Angelina in the Haunted Mansion

Chloë Grace Moretz

as Mavis in Angelina in the Haunted Mansion

Mel Brooks

as Dr. Frankenstein in Angelina in the Haunted Mansion

Ty Burrell

as Count Dracula in Angelina in the Haunted Mansion

Emily Blunt

as Mrs. Matilda Mouseling in Angelina in the Haunted Mansion

James McAvoy

as Mr. Maurice Mouseling in Angelina in the Haunted Mansion

Leah Zabari

as Polly Mouseling in Angelina in the Haunted Mansion

Justin Bieber

as A.Z. in Angelina in the Haunted Mansion

Hilary Duff

as Viki in Angelina in the Haunted Mansion

Jo Wyatt

as Gracie in Angelina in the Haunted Mansion

Jules de Jongh

as Marco in Angelina in the Haunted Mansion

Naomi McDonald

as Alice Nimbletoes in Angelina in the Haunted Mansion

Charlotte Spencer (actress)

as Angelina Mouseling in Angelina in the Haunted Mansion