Billy Crystal will pay tribute to the late comedian, who was found dead in his home Aug. 11, during the In Memoriam segment of the 66th Emmy Awards (airing Monday at 8 p.m. ET/5 p.m. PT on NBC).
The segment will also feature a performance by Grammy-nominated singer Sara Bareilles.
Crystal and Williams, together with Whoopi Goldberg, were longtime co-hosts on HBO's Comic Relief specials benefitting the homeless. The two men also starred in the 1997 film Fathers' Day.
Crystal has yet to speak publicly about Williams, other than to Tweet "no words" on the day of his death.
It seems likely that many of the Emmy presenters will also share memories of Williams, who began his acting career on TV with a recurring role on Happy Days that led to the spin-off Mork & Mindy. Williams was nominated eight times for an Emmy and won twice for variety specials he did in 1987 and 1988.
If you or someone you know is considering suicide, please contact the National Suicide Prevention Lifeline at 1-800-273-TALK (8255).
The Williams family is asking well-wishers to send contributions to charities close to the actor's heart in lieu of flowers. Suggested organizations include St. Jude Children's Research Hospital, Challenged Athletes, USO, the Muhammad Ali Parkinson Center, the Christopher and Dana Reeve Foundation and Glide Memorial Church in San Francisco.