Celebrity Weekend Birthdays: John Lithgow, Jon Favreau, Snoop Dogg, John Krasinski and more

This weekend's celebrity birthdays...October 19: Actor John Lithgow turns 79, TV personality Ty Pennington 60, actor/director Jon Favreau 58, animator/director Trey Parker 55, director Jason Reitman 47, actress Gillian Jacobs 42.

October 20: Actor Viggo Mortensen turns 66, actor William Zabka 59, rapper Snoop Dogg 53, actor John Krasinski 45, actress Jennifer Freeman 39, singer Tom Petty would be 74.