Suggestions by @maxcarter

Rowan Atkinson

as Zestial Morde in Hazbin Hotel (2004)

Robert Englund

as Tom Trench in Hazbin Hotel (2004)

RuPaul

as Katie Killjoy in Hazbin Hotel (2004)

Cate Blanchett

as Rosie in Hazbin Hotel (2004)

Christian Bale

as Lucifer Morningstar in Hazbin Hotel (2004)

Sarah Jessica Parker

as Carmilla Carmine in Hazbin Hotel (2004)

Carrie Fisher

as Lute in Hazbin Hotel (2004)

Johnny Depp

as Adam in Hazbin Hotel (2004)

David Spade

as Vox in Hazbin Hotel (2004)

Mariah Carey

as Velvette in Hazbin Hotel (2004)

Jim Carrey

as Valentino in Hazbin Hotel (2004)

Jeff Bennett

as Egg Bois in Hazbin Hotel (2004)

Gary Oldman

as Sir Pentious in Hazbin Hotel (2004)

Julianne Moore

as Niffty in Hazbin Hotel (2004)

Wayne Brady

as Husk in Hazbin Hotel (2004)

Ryan Reynolds

as Angel Dust in Hazbin Hotel (2004)

Willem Dafoe

as Alastor in Hazbin Hotel (2004)

Naomi Watts

as Vaggie in Hazbin Hotel (2004)

Kristen Dunst

as Charlie Morningstar in Hazbin Hotel (2004)

Billy Bletcher

as Bombinomicon in Team Fortress 2 (1937)