‘The Big Bang Theory’ Casts Judd Hirsch As Leonard’s Dad

LOS ANGELES (CBSNEWS.COM)- “The Big Bang Theory” family tree is growing even bigger!
During Wednesday’s PaleyFest panel in Los Angeles, it was announced that “Taxi” star Judd Hirsch has been tapped to play Leonard’s dad for an upcoming episode this season, airing Thursdays at 7:00PM in Denver.
Johnny Galecki admitted that he actually had a hand in casting Hirsch as his on-screen father after meeting at NBC’s James Burrows special.
“I met this fello