Robert Downey Jr. in 'Chaplin'...

...as the tramp, in a fictional recreation of Chaplin's screen debut. Chaplin actually made several shorts for Mack Sennett before appearing as the Tramp in 'Kid Auto Races at Venice' and 'Mabel's Strange Predicament'.
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Robert Downey Jr.

in 'Chaplin', with Marisa Tomei as Mabel Normand.
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Mickey Mouse!

...as Charlie, W.C. Fields, and Groucho Marx.

Tokyo, 1951

Picture caption reads 'Pete and Charlie in Tokyo'.

IBM Tramp, early 1980's

Collection of Damian Blake

Simon Bradbury

Bradbury as Chaplin, in the Gateway Theatre stage show 'Charlie Chaplin Goes to War' by Simon Brandbury and Dan Kamin.

Vintage farm girl

Posing as Charlie, circa 1920.

Sammy Davis Jr. as Charlie

Angel Emah

London street performer