Suggestions by @jesselee

Piglet (Winnie-the-Pooh)

as Piglet in Happy Birthday Olivia!

Lex Luthor

as Lex Luthor in Happy Birthday Olivia!

Old Hag

as Old Hag in Happy Birthday Olivia!

Granny May

as Granny May in Happy Birthday Olivia!

Shan Yu

as Shan Yu in Happy Birthday Olivia!

King Kong

as King Kong in Happy Birthday Olivia!

Magic Mirror

as Magic Mirror in Happy Birthday Olivia!

Lord Maximus Farquaad

as Lord Farquaad in Happy Birthday Olivia!

Hopper (A Bug's Life)

as Hopper in Happy Birthday Olivia!

Bruce (Finding Nemo)

as Bruce in Happy Birthday Olivia!

Ice Queen

as Ice Queen in Happy Birthday Olivia!

Ice King

as Ice King in Happy Birthday Olivia!

Anastasia Tremaine

as Anastasia Tremaine in Happy Birthday Olivia!

Queen of Hearts

as Queen of Hearts in Happy Birthday Olivia!

Prince John

as Prince John in Happy Birthday Olivia!

Sir Hiss

as Sir Hiss in Happy Birthday Olivia!

Maleficent (Disney)

as Maleficent in Happy Birthday Olivia!

Thanos (Marvel)

as Thanos in Happy Birthday Olivia!

M.O.D.O.K. (George Tarleton)

as M.O. D. O. K. in Happy Birthday Olivia!

Ghost Rider

as Wario in Happy Birthday Olivia!