Johnny Galecki arrives during the Paley Center for Media's PaleyFest, honoring The Big Bang Theory at the Saban Theatre, Wednesday March 13, 2013 in Los Angeles, California. (Photo by Kevin Parry/Invision/AP)
Johnny Galecki ("Big Bang Theory") attends the 2010 CBS Upfront at The Tent at Lincoln Center on May 19, 2010 in New York City.
Johnny Galecki stars as Leonard in The Big Bang Theory.
