Alan Thicke's Growing Pains family is hurting after the loss of their beloved patriarch.
The Canadian actor starred as Jason Seaver on the hit '80s sitcom from 1985-1992, and returned to play one of America's favorite TV dads for its two subsequent TV movies in 2000 and 2004. He died on Tuesday at age 69 after suffering a heart attack while playing hockey with his 19-year-old son, Carter.
RELATED: Robin Thicke Remembers Late Father Alan Thicke As 'The Greatest Man I Ever Met'
Thicke's on-screen daughter, Ashley Johnson, was the first from the cast to share her condolences on Twitter after Thicke's death.
She shared a sweet throwback shot of her and Thicke from the show alongside a quote from Washington Irving in a now-deleted post that read, "There is a sacredness in tears...They are the messengers of overwhelming grief, of deep contrition, and of unspeakable love."
Later, Growing Pains star Kirk Cameron shared his own tribute on Instagram.
"I spent Monday through Friday for seven important years with Alan Thicke as my 'TV dad,'" Cameron captioned a Growing Pains screenshot of him and Thicke. "I'm shocked and truly heartbroken today at the news of his death. Alan was a generous, kind and loving man. I am so blessed to have grown up with him. Chelsea and I send our love and prayers to his family tonight. We will cherish the memories... 'sharing the laughter and love.'"
Thicke's on-screen daughter, Tracey Gold, paid tribute to the star on Wednesday.
"I am in absolute shock and so unbelievably sad. In 1985 The Seavers became a family and Alan was our patriarch. I looked up to Alan and admired him greatly. I always listened to his advice and wisdom," she said in a statement obtained by ET. "He was so kind and warm and always made me laugh. He was incredibly proud that our Growing Pains days were about family, all our families. He was truly an amazing father. His sons were his world. Our Growing Pains Family is hurting today and that will not go away anytime soon. He was so full of life. I thought we had so much time. I'm not ready to say goodbye."
I am so honored to have been his daughter for seven beautiful years," she continued. "I love you Alan and will miss you forever."
WATCH: Candace Cameron Bure and 'Fuller House' Stars Share Touching Tributes to Alan Thicke