Suggestions by @jesselee

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!

The Undertaker

as The Undertaker in Happy Birthday Olivia!

Mole Man

as Mole Man in Happy Birthday Olivia!

Sabertooth

as Sabertooth in Happy Birthday Olivia!

Drizella Tremaine

as Drizella Tremaine in Happy Birthday Olivia!

Lady Tremaine

as Lady Tremaine in Happy Birthday Olivia!

Jafar (Disney)

as Jafar in Happy Birthday Olivia!

Frankenstein's Monster

as Frankenstein in Happy Birthday Olivia!

The Grinch (Character)

as Grinch in Happy Birthday Olivia!

Captain Hook

as Captain Hook in Happy Birthday Olivia!

Gaston LeGume

as Gaston in Happy Birthday Olivia!

Hades (Disney)

as Hades in Happy Birthday Olivia!

"Honest" John Worthington Foulfellow

as Honest John in Happy Birthday Olivia!

Diesel 10

as Diesel 10 in Happy Birthday Olivia!

Anakin Skywalker (Darth Vader)

as Darth Vader in Happy Birthday Olivia!

Harley Quinn

as Harley Quinn in Happy Birthday Olivia!

The Penguin (Oswald Cobblepot)

as The Penguin in Happy Birthday Olivia!

The Riddler (Edward Nigma)

as The Riddler in Happy Birthday Olivia!

The Joker (Character)

as The Joker in Happy Birthday Olivia!