Actors Jim Parsons, Kaley Cuoco, and Johnny Galecki pose in the press room at the 61st Primetime Emmy Awards held at the Nokia Theatre on September 20, 2009 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
TV - Movies
Big Bang Theory
Bloopers Funnier
Than The
Original Scene

"The Love Spell Potential" episode brings the gang together for a game of Dungeons and Dragons, with Howard (Simon Helberg) doing a spot-on impersonation of Al Pacino. In the blooper, Helberg dials up his impression, earning laughter all around the set and a hearty round of applause.

Al Pacino

The show never revealed Penny's (Kaley Cuoco) surname, which became a superstitious commitment for fear of jinxing the series' success. In a blooper from "The Tangible Affection Proof,” Leonard (Johnny Galecki) improvs the question, "You don't have problems? What's your last name?" A stumped Cuoco sputters, "I don't know!"

Penny's Last Name

Johnny Galecki famously punctuates each of his blunders with the word "Balls!" In the episode "The Loobenfeld Decay," Galecki flubs his line and exclaims "Balls!” setting off a chain reaction of the same exclamation from his co-stars as they bungle their lines while the audience is having a ball as well.

Galecki's Catchphrase

In "The Work Song Nanocluster," Helberg understandably trips up on scientific jargon, and Jim Parsons exclaims, "How could you not know that?" Karma has the last laugh when Parsons soon forgets his line, and Galecki gleefully lobs Parson's quip, "How could you not know that?"

Forgotten Lines

In "The Thespian Catalyst," Penny helps Sheldon hone his performing skills, which includes her having to perform the Vulcan salutation, in which she fumbles and makes a different gesture instead. The audience's laughter and Parsons' confused face cue Cuoco in on her mistake, and she quickly seeks help from a producer.

Vulcan Salutation