Actor/theme song composer/eternal TV dad Alan Thicke had a heart attack late Tuesday morning (December 13) while playing hockey with his 19-year-old son, Carter, and was later pronounced dead at a hospital in Burbank, CA. The Canada native was 69. He's survived by his wife Tanya and three sons Carter, Brennan, and Robin.

Thicke was most famous for playing Dr. Jason Seaver on "Growing Pains," but he also had a cameo in the "This Is Us" pilot, and can most recently be seen in an episode of "Fuller House" Season 2.

His account was just tweeting about that Tuesday afternoon, either in a scheduled tweet or through someone else operating his account:

Hollywood immediately reacted to the sad news, and his son Robin Thicke -- a famous music star in his own right -- shared his grief on Instagram:

A photo posted by Robin Thicke (@robinthicke) on

[via TMZ, The Hollywood Reporter]

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