Marshmallow

Marshmallow Plays Blair Thing in The Thing (CartoonNetworkandHasbroFan364 Style)
He is a big monster.

Marshmallow Plays The Shark in The Little Mer-Animation
He is a shark.

Marshmallow Plays Haunted Mansion Characters in Emilylina Elizabeth (E.B.andYinFan360 Style)
He is a haunted.