Fan Casting Robert Downey Jr. as Knuckles the Echidna/Super Knuckles and Metal Knuckles (voices, ever since his portrayal of Iron Man in The Avengers movie series) in Sonic the Hedgehog-A Motion Picture
Robert Downey Jr.
59 years old
Robert John Downey Jr. (born April 4, 1966) is an American actor and producer. His career has been characterized by critical and popular success in his youth, followed by a period of substance abus...
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Sonic the Hedgehog-A Motion Picture
Paramount pictures and Sega productions
The Freedom Fighters must protect Station Square from Dr. Eggman and his evil army.
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