"Lord Greystoke"
The On the Waterfront star reportedly checked into hotels repeatedly under the given name of this character from an Edgar Rice Burroughs novel — also known as Tarzan.
Top 11 Celebrity Pseudonyms
New York City mayoral candidate Anthony Weiner has admitted to using the pseudonym "Carlos Danger" during his illicit online conversations with women. He's far from the first celeb to try and hide under an assumed name; here's how and why a few of them attempted to avoid detection.
Marlon Brando