TRIBUTES have been paid to Harry Potter and Tutti Frutti actor Robbie Coltrane following his death at age 72. 

The Rutherglen-born star's agent of 40 years Belinda Wright announced the actor, who was best known for playing beloved Hogwarts gamekeeper Rubeus Hagrid, died today. 

His Harry Potter co-stars have been among the first to pay tribute to Robbie Coltrane following the announcement.

READ MORE: Harry Potter and Tutti Frutti actor Robbie Coltrane actor dies aged 72

Daniel Radcliffe has remembered him as "one of the funniest people" and an "incredible actor" following his death.

The actor, who starred in the lead role in the fantasy series, worked closely with Coltrane throughout the eight films.

Radcliffe shared fond memories from set in a statement shared with the PA news agency, saying: "Robbie was one of the funniest people I’ve met and used to keep us laughing constantly as kids on the set.

"I’ve especially fond memories of him keeping our spirits up on Prisoner of Azkaban, when we were all hiding from the torrential rain for hours in Hagrid’s hut and he was telling stories and cracking jokes to keep morale up.

"I feel incredibly lucky that I got to meet and work with him and very sad that he’s passed. He was an incredible actor and a lovely man."

JK Rowling, author of the Harry Potter books, called Coltrane "an incredible talent". 

She wrote on Twitter: "I’ll never know anyone remotely like Robbie again.

"He was an incredible talent, a complete one-off, and I was beyond fortunate to know him, work with him and laugh my head off with him.

"I send my love and deepest condolences to his family, above all his children."

James Phelps, who starred alongside Robbie Coltrane as Fred Weasley in the Harry Potter films, recalled his first memory of the actor.

He tweeted: “I will miss the random chats about all subjects under the sun.

“And I’ll never forget in September 2000, Robbie Coltrane came over to a very nervous 14yr old me on my 1st ever day on a movie set and said ‘Enjoy it, you’ll be great’. Thank you for that.”

READ MORE: From Cracker to Hagrid, larger-than-life Robbie Coltrane dominated the screen

His Still Game co-stars have also paid tribute to the actor on social media. 

Coltrane appeared in the series four episode Dial-A-Bus, as driver Davie who causes chaos when he almost runs over Boaby.

Gavin Mitchell wrote: "Awful news. A great actor, great company and a great laugh who will be hugely and sadly missed. Safe travels Sir. X"

Sanjeev Kohli tweeted: "I’ve LOVED Robbie Coltrane ever since A Kick Up The Eighties. I’ve loved everything he’s done since. And I was privileged to work with him once on Still Game. A comedy giant, a gentle giant. Rest in peace big man xxx"

The show's director Michael Hines said: "Very sad news. Had the enormous pleasure of working with him on #StillGame but he was a giant in every way in film and tv."

Stephen Fry, who starred in the comedy series Alfresco alongside Coltrane, said he will be "dreadfully missed". 

He wrote on Twitter: “I first met Robbie Coltrane almost exactly 40 years ago.

"I was awe/terror/love struck all at the same time.

"Such depth, power & talent: funny enough to cause helpless hiccups & honking as we made our first TV show, ‘Alfresco’.

"Farewell, old fellow. You’ll be so dreadfully missed."

Tony Robinson, who starred alongside Coltrane in British sitcom Blackadder, tweeted: “Robbie! You were such a sweet man and so talented as a comic and as a straight actor,” Robinson wrote on Twitter.

“‘Dictionary’ was my favourite episode of the Adder ever and it was all down to you mate. Rest well x”

Sam de Santis, Glasgow School of Art’s creative network manager, paid tribute to the “much-loved” Robbie Coltrane, who attended the art school as a young actor.

"We are all saddened to hear the news of the death of Robbie Coltrane. He is a much-loved GSA alumnus who will be missed by us all.

"Whilst internationally known for his acting career Robbie embodied the way in which studying at an art school opens up myriad opportunities to realise creative potential.

"Our thoughts are with his family at this sad time."