Scene-Stealing Sidekicks

How would Frodo get to Mount Doom without Sam? (He wouldn’t.)

Where would Dr. Frankenstein be without Igor to cackle at his side? (If we’re being honest, probably the same place–Igor’s not in the book, after all.)

Who would we hate in Batman without Robin to shout “Holy” everything? (We get it, Robin, but you’re kind of a superhero. Surprising things happen to you. Like every day.)

OK, so maybe some sidekicks are best left out of the equation. But a great many of them rise above their humb...