5 essential doctor characters played by Robin Williams

Robin Williams in 'Patch Adams'.

The late actor had a knack for portraying doctors on the big screen.

Did you know that Robin Williams, who passed away on Monday at age 63, had played two former US presidents in different films? He was Teddy Roosevelt (Theodore Roosevelt, 26th US president) in Night At The Museum and its sequel, and Dwight D. Eisenhower (24th US president) in Lee Daniels’ The Butler.