Suggestions by @jesselee

Lola Bunny

as Lola Bunny in Tuff puppy

Bugs Bunny

as Bugs Bunny in Tuff puppy

Elmer Fudd

as Elmer Fudd in Tuff puppy

Daffy Duck

as Daffy Duck in Tuff puppy

Clayton's Men

as Clayton’s Men in Tuff puppy

Thor Odinson

as Thor Ordion in Tuff puppy

Princess Mira Nova

as Princess Mira Nova in Tuff puppy

The Incredible Hulk (Bruce Banner)

as The Incredible Hulk in Tuff puppy

Batman

as Batman in Tuff puppy

Grubs

as Grubs in Tuff puppy

Evil Buzz Lightyear

as Evil Buzz Lightyear in Tuff puppy

King Kong

as King Kong in Tuff puppy

Panic

as Panic in Tuff puppy

Pain

as Pain in Tuff puppy

Elmer Fudd

as Elmer Fudd in Tuff puppy

William Cecil Clayton

as Clayton in Tuff puppy

Harley Quinn (Dr. Harleen Quinzel)

as Harley Quinn in Tuff puppy

Harley Quinn (Dr. Harleen Quinzel)

as A in Tuff puppy

Clayface

as Clayface in Tuff puppy

The Joker (Character)

as The Joker in Tuff puppy