Robin Williams | His Mother & Jack Nicholson

Mork and Mindy star Robin Williams is very much known for his comedic work, but she also has a slew of dramatic films, including the Awakenings, Moscow on the Hudson, and Patch Adams.  A quick look at his film credits shows that the actor worked hard during his lifetime in making a legacy. His efforts were duly recognized by award-giving bodies when he was nominated four times and winning one for the Academy Awards.

On The Graham Norton Show, Williams showcased his impression skills, first imitating his mom and how she would have reacted as he forgot to thank him during a ceremony. Later on, right after Elijah Wood mimicked Jack Nicholson, he also did his take on it—where he ended up doing an even better job than Wood. The Lord of the Rings actor was admittedly nervous because he knew the elderly actor could perform better.