
Denis Colin Leary (born August 18, 1957) is an American actor, comedian, writer, director and film producer. Leary is known for his biting, fast paced comedic style and chain smoking. He is the star and co-creator of the television show Rescue Me, which ended its seventh and final season on September 7, 2011. Leary has starred in many motion pictures, most recently as Captain George Stacy in Marc Webb's 2012 film The Amazing Spider-Man and the voice of Diego in the animated Ice Age series.

Spider-Man: Across the Spider-Verse
2023 · as George Stacy (archive footage) (uncredited)

The Amazing Spider-Man 2
2014 · as Captain Stacy (uncredited)

The Amazing Spider-Man
2012 · as Captain Stacy

Ice Age
2002 · as Diego (voice)

Ice Age: Dawn of the Dinosaurs
2009 · as Diego (voice)

Ice Age: Continental Drift
2012 · as Diego (voice)

Small Soldiers
1998 · as Gil Mars

Ice Age: Collision Course
2016 · as Diego (voice)

A Bug's Life
1998 · as Francis (voice)

Ice Age: The Meltdown
2006 · as Diego (voice)

Demolition Man
1993 · as Edgar Friendly

The Thomas Crown Affair
1999 · as Det. Michael McCann

The Sandlot
1993 · as Bill

Ice Age: Boiling Point
2027 · as Diego (voice)

Ice Age: A Mammoth Christmas
2011 · as Diego (voice)

Wag the Dog
1997 · as Fad King

True Crime
1999 · as Bob Findley

Oh. What. Fun.
2025 · as Nick