Before starring in THE BIG BANG THEORY, Johnny Galecki was best known to television audiences for his role as David in the long-running comedy series "Roseanne," for which he won a Young Artist Award. His additional series credits include a recurring role in "My Boys" and guest appearances on "My Name is Earl."
Galecki's feature film credits include "Hancock" opposite Will Smith, Charlize Theron and Jason Bateman; "The Opposite of Sex," "Bounce," "Happy Endings," "Vanilla Sky," "I Know What You Did Last Summer," "Suicide Kings," "Bookies," "Chrystal," "Playing Mona Lisa," "Bean" and "National Lampoon's Christmas Vacation."
Galecki has numerous stage credits to his name. He starred in the Tony Award-nominated Broadway play, "The Little Dog Laughed," for which he received a 2007 Theater World Award for Outstanding Broadway Debut. His other theater credits include "The Drawer Boy" and "Pot Mom" at Chicago's Steppenwolf Theatre, "The Member of the Wedding," for which he was nominated for a Joseph Jefferson Award, and "Galileo" at Chicago's Goodman Theatre, among others.
Next, he will be seen on the big screen this fall in Andrew Niccol's "In Time," opposite Justin Timberlake. Television audiences will also be able to see Galecki playing a "tougher" version of himself in the final season of "Entourage" this summer.
Born in Belgium when his father was stationed there while serving in the U.S. Air Force, Galecki was raised in Chicago, Ill. Currently, he resides in Los Angeles. His birth date is April 30.