The Growing Pains actor died on Tuesday

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Alan Thicke’s death sparked an instant outpouring of mourning and support on social media.

Thicke, who starred in Growing Pains from 1985-1992 as Dr. Jason Seaver, passed away on Tuesday, PEOPLE confirms. He was 69. Thicke suffered a heart attack while playing hockey with his son Carter, the Los Angeles Times confirmed.

Celebrities took to Twitter and Facebook to express their condolences and share their favorite moments with the actor and composer.

John Stamos uploaded an Instagram photo of himself alongside the beloved actor, writing, “Damn. Loved this guy. Loved his self deprecating sense of humor. Charming, funny and sweet. Hell of a combo. We’ll miss you.”

Carter, Thicke’s youngest son, tweeted: “Today I lost my best friend and my idol, and the world lost one of it’s finest. You are a legend and I love you Pops. Until next time.”

Thicke’s first wife Gloria Loring, who is singer Robin Thicke‘s mother, detailed her sadness on Facebook writing, “Dear Friends, Thank you for your kindness concerning Alan Thicke’s passing. It is a shock. We were all just together for Thanksgiving. He was talented, funny and deeply devoted to his family. Rest In Peace, dear one.”

His former daughter-in-law Paula Patton shared a quote from Mother Teresa, minutes before news of Thicke’s death was made known. Daughter-in-law Dolly Thicke, who is married to Alan’s son Brennan, posted on Facebook that she was “devastated” using the platform’s emoticon status.

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Bob Saget, who recently worked with Thicke on season two of Fuller House, tweeted, “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.”

Fuller House star Candace Cameron Bure posted a recent photo of her and Thicke from the Netflix set. “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,” Bure captioned the picture.

Lori Loughlin also tweeted: “I’m so sad to hear about the passing of Alan Thicke. RIP Alan.”

Leonardo DiCaprio, Ellen DeGeneres, Demi Lovato, Russell Simmons and more of Thicke’s famous friends also said their farewells.

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Thicke is survived by his wife, Tanya, and his three sons: Robin, Carter and Brennan.