Zak Williams says he is still grieving over the death of his iconic father, Robin Williams, earlier this summer.
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"I miss him all the time," he told People magazine for this week's cover story. "Often I see something or if I'm watching a film, I think, 'Oh, man, he would have appreciated this' or, 'He would have gotten a laugh out of this.' "
Williams died of an apparent suicide from asphyxia at age 63 in early August.
Zak Williams, 31, along with his sister, Zelda, 25, and his brother, Cody, 23, have been open about their grief since their dad’s death.
"There's not a day that goes by that we don't think about our dad," Williams told the magazine, adding that by helping others, he's now begun to heal.
At the time of his death, the actor's rep released a statement to ABC News Aug. 11, saying, "Robin Williams passed away this morning. He has been battling severe depression of late. This is a tragic and sudden loss."
Williams' wife later revealed he was also in the early stages of Parkinson's disease.