enlarge
  • Denis Leary poses with FDNY Firefighters during the dedication and demonstration of The Leary Firefighters Foundation’s high-rise training simulator at FDNY Training Academy
  • Denis Leary takes a bite out of his new book, ‘Why We Suck’
  • Jenny McCarthy and Denis Leary (inset)
  • Denis Leary holds his 2008 book, ‘Why We Suck’ on stage in NYC, Sept. 5
  • ‘Rescue Me’ star Denis Leary poses on the Emmy red carpet
  • Denis Leary turns the cameras on Access
  • Denis Leary is the son of Irish immigrants
  • Denis Leary in New York
  • LeAnn Rimes, Denis Leary & Emmy Rossum at a Redbook benefit
  • Denis Leary shows his love for Aerosmith by wearing this shirt!

1/10

  • Getty Images

    Denis Leary poses with FDNY Firefighters during the dedication and demonstration of The Leary Firefighters Foundation’s high-rise training simulator at FDNY Training Academy
  • FilmMagic

    Denis Leary takes a bite out of his new book, ‘Why We Suck’
  • Getty Images

    Jenny McCarthy and Denis Leary (inset)

  • Getty Images

    Denis Leary holds his 2008 book, ‘Why We Suck’ on stage in NYC, Sept. 5

  • Getty Images

    ‘Rescue Me’ star Denis Leary poses on the Emmy red carpet

  • NBC

    Denis Leary turns the cameras on Access
  • Access Hollywood

    Denis Leary is the son of Irish immigrants
  • AP

    Denis Leary in New York
  • AP

    LeAnn Rimes, Denis Leary & Emmy Rossum at a Redbook benefit
  • AP

    Denis Leary shows his love for Aerosmith by wearing this shirt!