Upon learning of Hooks death, the 60-year-old funnyman shared a flashback photo of himself with his former flame, writing: "My girlfriend in the '80s and my friend forever, Janners. God, were you talented. Too soon and too sad. #JanHooks."
Nealon was among a long list of celebrities who paid tribute to Hooks via Twitter on Thursday. Here are a few of those heartfelt tweets:
Amy Schumer: "Jan Hooks made me laugh so hard so many times. Very sad."
Seth MacFarlane: "Jan Hooks still stands out as one of the funniest cast members in SNL history. Very sorry to read about her passing."
Kristen Johnston: "I can't believe it. Jan Hooks appeared in many 3rd Rock eps. We all truly loved her. I can't believe she's gone, another comedic genius."
Katie Couric: "So sorry to hear about Jan Hooks. I loved her on SNL."
Billy Eichner: "Such sad news about the BRILLIANT Jan Hooks. Worshiped her on SNL. RIP."
Jackee Harry: "My condolences to the family & friends of #SNL alum, #JanHooks. I had the pleasure of working w/ her on #DesigningWomen. A true gem. RIP."
John Hodgman: "Oh, Jan Hooks. I love you."
Paul Feig: "Incredibly sad about Jan Hooks. She was truly one of my favorite SNL cast members. So funny. A sad day for comedy. #RIPJanHooks."
Colin Hanks: "Jan Hooks always made me laugh. always."
Joshua Malina: "Shocked and saddened to read that Jan Hooks passed away. R.I.P. to a very funny woman."
Tony Hale: "So so gifted. RIP Jan Hooks."
Cheyenne Jackson: "RIP JanHooks. Worked briefly with her on 30Rock and she was a twistedly brilliant comedic presence. #Adobe"