Suggestions by @jesselee

Jedi Master Yoda

as Yoda in Teen Beach Movie

Ben Solo (Kylo Ren)

as Kylo Ren in Teen Beach Movie

Big Bird

as Big Bird in Teen Beach Movie

Cookie Monster

as Cookie Monster in Teen Beach Movie

Grover (Sesame Street)

as Grover in Teen Beach Movie

Herry Monster

as Herry Monster in Teen Beach Movie

Sesame Street Muppets

as Sesame Street in Teen Beach Movie

Jesselee

as Jesselee in Teen Beach Movie

Kelly Adams

as Elmo in Teen Beach Movie

Red Skull (Johann Schmidt)

as Red Skull in Teen Beach Movie

The Riddler (Edward Nigma)

as The Riddler in Teen Beach Movie

Fozzie Bear

as Fozzie Bear in Teen Beach Movie

Animal

as Animal in Teen Beach Movie

Miss Piggy

as Miss Piggy in Teen Beach Movie

Statler and Waldorf

as Statler and Waldof in Teen Beach Movie

Splatter and Dodge

as Splatter and Dodge in Teen Beach Movie

Dee Bradley Baker

as Elmo in Ernie & Bert

Mel Brooks

as Telly Monster in Ernie & Bert

Jim Broadbent

as Oscar The Grouch in Ernie & Bert

Sandy Ward

as Baby Bear in Ernie & Bert