Robin Williams's Best Film Roles: PEOPLE's Critic Looks Back

Robin Williams was a talent unto himself, able to ricochet from performances that were riotously funny to ones that were extremely sensitive, even somber. The wide, unstoppable mouth expressed the exuberant humor. The eyes – small, watchful and blue – seemed to express the sadness and the thoughtfulness. Here are some of my favorite movies from his eclectic but distinguished career.

Ben Affleck Thanks Robin Williams for 'Making My Dreams Come True'

Ben Affleck has issued a heartfelt tribute to his friend and mentor Robin Williams, thanking his Good Will Hunting costar for “everything.”

“Heartbroken. Thanks chief – for your friendship and for what you gave the world. Robin had a ton of love in him. He personally did so much for so many people. He made Matt and my dreams come true,” he wrote on Facebook Tuesday.

Remembering Robin Williams Through His Most Beloved Roles

Robin Williams, who committed suicide Monday at the age of 63, came to fame as a stand-up comedian and sitcom star, but over the course of his long career, Williams proved himself a limitless talent, equally at home in family films, adult dramas and everything in between.

As the world mourns Williams, let’s look back at the roles that made the actor so beloved.

Robin Williams Accepts the 1998 Best Supporting Actor Oscar (VIDEO)

Nominated for the Best Supporting Actor Award at the 70th Academy Awards in 1998, Robin Williams was in good company. He was up for the Oscar alongside Robert Forster (Jackie Brown), Anthony Hopkins (Amistad), Greg Kinnear (As Good as It Gets) and Burt Reynolds (Boogie Nights).