Watching a Robin Williams interview has always been such a thrill.

Robin Williams mesmerized in serious roles as well as comedic movies.
He was memorable well beyond the big screen: on television, on the comedy stage, even on Broadway.

Here are 10 of Williams' most distinctive roles — and the list could be much longer:

"GOOD WILL HUNTING" (1997) — A rare but welcome serious role for Williams, who played the stubborn yet empathetic therapist who was somehow able to help math prodigy Will Hunting (Matt Damon) figure out how to handle his life. Won a supporting actor Oscar.

"MRS. DOUBTFIRE" (1991) — Who couldn't love a bumbling dad who dressed up as a portly nanny — with a latex mask, a wig and a Scottish accent — in order to spend time with his young kids? (A sequel was in the works.)

"ALADDIN" (1992) — Will it ever be possible to see a cartoon genie and not think of Williams? Remember him shooting out of that bottle: "Ten thousand years will give you SUCH a crick in the neck!"

"GOOD MORNING, VIETNAM" (1987) — Williams' fast-talking style was perfect for the role of a DJ on Armed Forces Radio during the Vietnam War. (First Oscar nomination.)

"ONE HOUR PHOTO" (2002) — Another serious role, and it was a creepy one: Williams played a photo counter worker at a huge suburban store who got a little too involved in the lives of his customers when he realized one of them was having an affair.

"DEAD POETS SOCIETY" (1989) — Played an unconventional poetry teacher who taught his Vermont boarding school students to stand on their desks, think on their own, and "seize the day." (Second Oscar nomination.)

"THE FISHER KING" (1991) — Williams played a half-mad homeless man, convinced that the Holy Grail was sitting in the Fifth Avenue abode of a billionaire. (Third Oscar nomination).

"MORK & MINDY" (1978-1982) — Mork from Ork. Nanu, nanu. What more need be said? This TV series, a spinoff of "Happy Days," is how many of us first learned of Williams' sublime nuttiness.

"MOSCOW ON THE HUDSON" (1984) — Williams played a Russian — and quite credibly, too — in this film about a comically lovable circus saxophonist, Vladimir, who defects while touring New York (turning himself in at Bloomingdale's, naturally.)

"BENGAL TIGER AT THE BAGHDAD ZOO" (2011) — Appearing on Broadway, Williams gave an admirably thoughtful performance in the role of a tiger — actually, the ghost of a dead tiger — locked up at the Baghdad Zoo at the time of the U.S. invasion in 2003.

The showbiz world is remembering the legend:

His daughter Zelda Williams:

Twitter

Billy Crystal:

Sally Field:

Steve Martin:

Will Ferrell:

Cher:

Steve Carell:

Lady Gaga:

Jimmy Kimmel:

Jared Leto:

Steve Carell:

Lady Gaga:

Jimmy Kimmel:

Jared Leto:

His daughter Zelda Williams:

Billy Crystal:

Sally Field:

Steve Martin:

Will Ferrell:

Cher:

Steve Carell:

Lady Gaga:

Jimmy Kimmel:

Jared Leto:

Larry King: Williams was one-of-a-kind
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(CNN) - Robin Williams delighted fans with his off-the-wall, high-energy comedy that took unexpected turn after unexpected turn.

He was a comedic inspiration for many performers, but he also was a brilliant dramatic actor on stage and on the the big screen.

Those who worked with him knew him to be a genius and the rarest of talents. After news of his shocking death spread, his friends and professional admirers expressed their love for the man Steve Martin called a "great talent, acting partner, genuine soul."

I met this sweet, generous & brilliant man Robin Williams in 1991. Here we are with HIS idol Jonathan Winters. #RIPpic.twitter.com/ZI4QV5QyuL

— Kathy Griffin (@kathygriffin)August 11, 2014
I can't believe the news about Robin Williams. He gave so much to so many people. I'm heartbroken.

— Ellen DeGeneres (@TheEllenShow) August 11, 2014
I could not be more stunned by the loss of Robin Williams, mensch, great talent, acting partner, genuine soul.

— Steve Martin (@SteveMartinToGo) August 11, 2014
A tweet cannot begin to describe the hugeness of Robin Williams heart and soul and talent. This is so sad. #RobinWilliams

— Ben Stiller (@RedHourBen)August 12, 2014
His heart was as big as his genius. So sad. Rest in Peace Robin Williams.

— bob saget (@bobsaget) August 11, 2014
Oh Robin...Our hearts are broken. Rest in peace darling. We loved you.

— Goldie Hawn (@goldiehawn)August 11, 2014
Genie, you're free.pic.twitter.com/WjA9QuuldD

— The Academy (@TheAcademy) August 12, 2014
So sad so funnyhttp://t.co/YF9UH5BOYb

— Chris Rock (@chrisrock)August 11, 2014
When I was 18 I got a job as an intern at Comic Relief just to be near him. A genius and a truly kind man who made the world a better place.

— Judd Apatow (@JuddApatow)August 12, 2014
Robin Williams has died and I am very sad. From every comedian here at the Edinburgh Fringe Festival, we salute him & we say goodbye

— Eddie Izzard (@eddieizzard)August 11, 2014
Ah Robin, I'm so sorry the earth couldn't stay worthy of you. Hope happiness awaits you.

— jason alexander (@IJasonAlexander) August 11, 2014
Robin Williams RIP. Truly one of the most talented men in the history of show business. What a loss. To lose those who make us laugh...wow.

— Wayne Brady (@waynebrady)August 12, 2014
Robin Williams ~ Vaya Con Dios my friend , I love you

— George Lopez (@georgelopez)August 11, 2014
RIP mr Williams - beyond great talent -such a kind and lovely person

— John Cusack (@johncusack)August 11, 2014
One of the greatest nights of my youth was spent with dear Robin Williams. Let's all get closer to our friends who are down, and share love.

— Val Kilmer (@ValEKilmer)August 12, 2014
So sad Robin Williams died :( We did 2 films 2gether. He ws a very lovely man & kind caring person. My heart goes out 2 his loved ones.

— Fran Drescher (@frandrescher) August 11, 2014
I'm in utter disbelief that Robin Williams is dead.

This is considered one of Robin Williams funniest tweets: