The comedian has long been open about his struggles with addiction.
The hybrid live-action animated film also stars Seth Rogen.
Mulaney said, “I guess they opened a file on me because of the joke, and I have to say: Am I stoked there’s a file open on me? Absolutely. Did I enjoy it in the moment? Not so much.”
Executive producer Mike Shoemaker made the announcement on Twitter.
Mulaney revealed the funny anecdote on Seth Meyers while wearing the coat the entire time.
This week’s Halloween episode felt like the drawing of a big gun.
SNL is providing viewers with quite a treat.
Both will continue the stories first introduced in his Sack Lunch Bunch Netflix special from 2019.
The actor will star alongside Camila Cabello, Idina Menzel, Pierce Brosnan, among others.
The Talking Head perform “Once in a Lifetime” and “Toe Jam”, plus he stars in a sketch opposite John Mulaney.
John Mulaney and Daniel Craig tapped as hosts.
Natasha Lyonne, Richard Kind, Annaleigh Ashford, and more also appear.