Suggestions by @alligatorplayz

Michael Caine

as Walrus in Nature (TV program)

Charles Dance

as Walrus in Nature (TV program)

Patrick Stewart

as Walrus in Nature (TV program)

Anthony Hopkins

as Walrus in Nature (TV program)

Gary Oldman

as Walrus in Nature (TV program)

Hugh Laurie

as Walrus in Nature (TV program)

Jeremy Irons

as Walrus in Nature (TV program)

Ian McKellen

as Walrus in Nature (TV program)

Ralph Fiennes

as Walrus in Nature (TV program)

Bill Nighy

as Walrus in Nature (TV program)

John Cleese

as Walrus in Nature (TV program)

Emilia Clarke

as Polar Bear in Nature (TV program)

Aubrey Plaza

as Polar Bear in Nature (TV program)

Amy Adams

as Polar Bear in Nature (TV program)

Chloë Grace Moretz

as Polar Bear in Nature (TV program)

Zendaya

as Polar Bear in Nature (TV program)

Alexandra Daddario

as Polar Bear in Nature (TV program)

Ana de Armas

as Polar Bear in Nature (TV program)

Ariana Grande

as Polar Bear in Nature (TV program)

Elizabeth Olsen

as Polar Bear in Nature (TV program)