At this writing, no announcement has been made about the fate of his character.
In “White Collar,” Garson played Mozzie, the best friend of parolee-turned-FBI-consultant Neal Caffrey.
Garson is survived by his son, Nathen, whom he adopted as a young boy in 2009.

Nathen, now a junior at Wooster College, posted a poignant tribute to hisInstagramaccount.
“I love you so much, papa,” Nathen wrote.
I’m so proud of you.

… You always were the toughest and funniest and smartest person I’ve known."
I’m devastated and just overwhelmed with sadness.
Taken away from all of us way soon.
You were a gift from the gods.
Rest, my sweet friend.
I love you."
Jason Alexander was equally devastated as hewrote: “The wonderful Willie Garson has left us.
A dear, funny, kind man and delightful actor.
Julie Bowen, a good friend of Garson’s,expressedher sorrow.
“This breaks my heart,” she wrote.
I love you always.”
I am so glad I told you I adored you before you left."
Mia Farrowsaidsimply, “Thank you for your kind heart.”
Rob Morrowmourned, “Our sweet pal#WillieGarsonhas passed on.
Dear soul, rest easy.”
It seems Willie Garson’s reputation was well-earned.