Ben Stiller, who acted alongside Robin Williams in Night at the Museum, has paid tribute to the "generous and brilliant" comedian, in a statement on Twitter.
OK, I’ll try. I met him when I was 13 and a huge fan and he was so kind and I watched him be kind to every fan i ever saw him with...
And with other actors he was so generous and brilliant. He made everyone feel special and equal around him even though he was the genius...
His heart was so big and even if you didn’t know him, what he gave everyone was that same spirit in his work, so we all felt it…
His impact on the world was so positive. He did so much good for people. He made me and so many people laugh so hard for a very long time.
Robin Williams' daughter has left social media after receiving abusive messages in the wake of her father's death.
Radio station talkSPORT has apologised after presenter Alan Brazil said he lacked sympathy for actor Robin Williams, who took his own life.
He played a wide range of roles but Robin Williams captured the hearts of millions with his performances.