Robert Downey Jr. is the comeback king of Hollywood. Most know him from the MCU as Iron Man, but he's been in several other acclaimed films too. His career has spanned several decades, and his legacy has been cemented since he uttered the words "I am Iron Man" in his first outing as his now most iconic character. Downey Jr. might not have won any Academy Awards but has surely won the hearts of the audience through his characters.

Also known for starring in popular franchises, Downey Jr. has impressive skills to turn any scene from drama to comedy on a dime and has played some iconic roles over the last few decades. Here are some of his epic dialogues that ruled our hearts. Catch Sherlock Homes and Dolittle on Sony PIX as we celebrate Robert's 55th birthday.