Alyssa Milano led the tributes to Alan Thicke following his sudden death on Tuesday (13Dec16), saying he was "always the nicest and happiest person in the room".
The actress, who starred alongside Alan in TV movie Dance 'Til Dawn in 1988, took to Twitter to pay her respects to the actor, who died aged 69 reportedly after a heart attack while playing hockey with his teenage son Carter.
"Alan Thicke was always the nicest and happiest person in the room. Gone way too soon. Rest In Peace," Alyssa wrote.
Meanwhile, Ben Stiller also recalled his first job in Los Angeles working for Alan, writing: "Just heard of #AlanThicke's passing. 1st job in LA was as an intern for him... He was a very nice boss. Sending good thoughts to his family."
Candace Cameron Bure, who worked with Alan on Full House recent revival Fuller House, posted: "I'm sad beyond words that Alan Thicke has passed away. I've known you since I was 8 years old and so glad I had the pleasure of working with you again so recently on Fuller House. You were a part of my family and hockey family. You will be greatly missed. My heart hurts."
Another Full House cast member, Bob Saget, also joined in the tributes, writing: "So sad is the passing of Alan Thicke. Such a good husband, father, brother, and friend. He will be deeply missed. Rest in peace dear Alan," while his co-star Lori Loughlin added: "I'm so sad to hear about the passing of Alan Thicke. RIP Alan."
Kris Jenner, a close friend of Alan's, shared a snap of the actor on her Instagram page, alongside the moving caption: "My heart is heavy. So deeply saddened by the loss of a loving father, talented actor and incredible friend. Alan you were loved by so many and you will be missed by us all. My thoughts and prayers are with the Thicke family."
Minnie Driver is a close friend of Alan's singer son Robin, and tweeted: "Dear,kind,funny gorgeous generous Alan. Loved you, loved all the holidays we all went on. Will miss you so greatly. #alanthicke."
Chat show host Ellen DeGeneres was also quick to offer her own tribute, writing: "America loved Alan Thicke. I'm so sad he's gone. Sending so much love to his family."
Star Trek star William Shatner tweeted the simple message, "Saddened over the loss of my friend Alan. Condolences to his family", while Olivia Munn wrote, "So so sad to hear about the passing of #AlanThicke. Such a nice guy. My thoughts and prayers are with his loved ones. Rest in love."
It wasn't only screen stars who paid tribute to the late legend however. John Legend tweeted: "RIP Alan Thicke. I grew up watching him and got to know him through Robin. He was always so kind to me. So sad to hear about his passing."
Demi Lovato tweeted, "Had the pleasure of meeting Alan Thicke and his amazing wife Tanya a few years back.. my thoughts and prayers are with his family. RIP."
And Chaka Khan commented on the amount of deaths during the year, including Prince and David Bowie, writing: "Condolences to the family of @Alan_Thicke. If ever there was a time celebs are thinking about our mortality, 2016 is it."