Robin Williams' Son Shares Emotional Update on What Would've Been His Dad's 74th Birthday originally appeared on Parade. Zak Williams, the eldest child of Robin Williams, shared a touching post in his father's honor on what would have been his 74th birthday.

As the '80s progressed, Robin Williams ramped up his acting career, with roles in movies like The World According to Garp, Moscow on the Hudson and other films. He soon proved that he was more than just a jokester, when he was nominated for an Oscar for his role as a '60s-era DJ in the 1987 film Good Morning, Vietnam.