John Mulrooney, the quick-witted Brooklyn comedian who hosted Fox’s Comic Strip Live and stepped into Joan Rivers’ shoes on The Late Show, died suddenly at 67 in his Coxsackie, NY home on December 29, 2025. No cause disclosed, but tributes flood in celebrating his improv mastery, radio dominance, and surprise cop career. Comedy lost a resilient force who never quit.
Brooklyn Roots: From Star Search to Stardom
Born 1958 in Brooklyn, Mulrooney honed his crowd-working chops at Pips Comedy Club alongside Andrew Dice Clay, competing on Star Search and dominating NYC stages. His improvisational genius lit up The Improv, Laugh Factory, Dangerfield’s, and Comedy Store.
HBO, Showtime specials and PBS’s Comedy Tonight showcased his high-energy style. Two-time New York State Broadcasters Award winner for Best On-Air Personality, he beat Howard Stern in Albany ratings.
Late-Night Legend: Hosting The Late Show
In 1987, Fox tapped Mulrooney to guest-host The Late Show post-Joan Rivers firing, alongside Arsenio Hall and Ross Firestone. He helmed Comic Strip Live (1989-1990), launching comedy legends in primetime.
Guest-hosted CBS’s The Pat Sajak Show, appeared on An Evening at the Improv, Andrew Dice Clay specials, New Hollywood Squares. Radio co-host in NYC, Albany, Cleveland solidified his voice.
Acting & Service: Cop After Comedy
TV guest spots on Ellen, Ryder P.I., 1st & Ten, Midtown North, The Good Life, Hardball. Film debut: Great Balls of Fire (1989) as Jack Paar. Later: The Bistro (2016), The Big Bad Broadcast.
USO tours entertained troops in 2000s. From 2010-2024, Coxsackie Police officer hosted first-responder fundraisers using comedy gold. Became recreational pilot upstate.
Sudden Loss: Tributes Honor Resilience
Andrew Dice Clay posted: “Last comedian from Pips everyone thought would explode… Never gave up—that’s comedy.” Obituary hailed him “cherished comedian, devoted public servant, proud patriot.”
Active weeks before death at fundraisers. Visitation January 4, funeral January 5 at Church of the Holy Family, Staten Island. Donations to St. Jude Children’s Hospital.
Fans Mourn: Rewatch His Legacy
Social media overflows with clips of his crowd work, late-night clips. Reddit, X hail “underrated king of improv.” Recent Big Bad Broadcast appearance shows timeless energy.
From Brooklyn pipes to upstate badge, Mulrooney lived full throttle. Stream specials, laugh through tears—his punchlines endure.
