On Twitter, Celebs Bid Farewell to Robin Williams

Barack Obama: Robin Williams was an airman, a doctor, a genie, a nanny ... and everything in between. But he was one of a kind.

Amitabh Bachchan: Lost in person Robin Williams .. his versatility extraordinary, his best though to me was his stage standup solo performances !!

Shah Rukh Khan: 'To have no yesterday, and no to-morrow. To forget time, to forgive life, to be at peace'….may death be so for My Captain. RIP Mr. Williams

Abhishek Bachchan: Oh captain, my…… terrible news about the passing of one of my favourite actors. Mr. Robin Williams.This is the 1st time he made anyone cry.

Arjun Kapoor: RIP Robin Williams u will always remain in my memory as Mrs doubtfire...hope u find happiness up there u mad genius...

Varun Dhawan: Crushed after hearing this. Rip robin Williams your an insipiration and a teacher. Maybe the angels need some fun

Nargis Fakhri: Rip Robin Williams ..makes me so sad to hear this news. My heart aches. ?? doesn't matter how successful u r. The mind is a strange place..

Bipasha Basu: Heartbroken and shocked! Rip Robin Williams :(

Sidharth Malhotra: Sad to hear abt Robin Williams-RIP n thank u for all the laughs

Dia Mirza: My childhood would have been incomplete without #MrsDoubtfire #Flubber #Jumanji and so many more of his films... #RobinWilliams. He warmed the cockles of the heart, tickled the funny bone and made one feel so deeply... But above all he made us think. #RIPRobinWilliams

Lady Gaga: Rest in Peace+Laughter Robin Williams. Perhaps this tragedy will shed light on the seriousness of depression. You made us all so so happy.

Courteney Cox: My thoughts and prayers are with all who knew and loved Robin Williams. What a genius he was.

Avril Lavigne: RIP Robin Williams so sad :( ???? you touched so many with your talent.

Demi Lavato: Looking back at how much Robin Williams was a part of my childhood.. My heart is so sad.. ?? my prayers are with his friends and family..

Neha Dhupia: RIP Robin Williams ,U ve left us with so much to laugh abt with ur performances .But u ve gone too soon! so sad

Arjun Rampal: Woke up to the awful and tragic news of Mr. Robbin Williams.He touched our hearts through so many wonderful characters.RIP captain o captain.

Richa Chadda: Your life is not yours... It belongs to the Universe... Robin Williams... Wish you had held on a little longer... #RIPRobinWilliams

Kevin Spacey: Robin Williams made the world laugh & think. I will remember & honor that. A great man, artist and friend. I will miss him beyond measure.

Minnie Driver: My Heart's broken. Robin was a beautiful, kind soul. Can't bear that he's gone. So incredibly sorry for his family.

Mia Farrow: No! Robin Williams you were so loved.

Steve Martin: I could not be more stunned by the loss of Robin Williams, mensch, great talent, acting partner, genuine soul.

Cher: Oh Robin

Kim Kardashian West: At first I didn't believe it. But it's true. RIP Robin Williams. The world will miss you dearly

Ellen DeGeneres: I can't believe the news about Robin Williams. He gave so much to so many people. I'm heartbroken.

Katy Perry: So sad about Robin Williams...??

Miley Cyrus: I can't take the Robin Williams news. I've never cried over someone I've never met but I can't stop????????

Harry Styles: One of my all time favourites. Movies I grew up watching over and over again. A genius that will be so missed. R.I.P. Robin Williams.

Karan JOhar: This is just too sad.....RIP Robin Williams....