504 - The Wiggly Finger Catalyst
Aired October 6, 2011

The Wiggly Finger Catalyst

Penny introduces Raj to a girl he can actually communicate with - albeit with some help from Howard. Meanwhile, Sheldon frees up his mind by leaving trivial decisions to the roll of the dice.

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Guest Stars: Katie LeClerc as Emily, Brian George as Dr. Koothrappali, Alice Amter as Mrs. Koothrappli

Writers: Chuck Lorre (Story), Dave Goetsch (Story), Anthony Del Broccolo (Story), Bill Prady (Teleplay), Steven Molaro (Teleplay), Steve Holland (Teleplay)

Director: Mark Cendrowski

Viewers: 13.63 million Households Rating: 8.2/14 Adults 18-49 Rating: 4.4/13

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Episode Notes

  • The title references the sign language they use to communicate with Emily.

Quotes (14)

Penny: (Whispers) Here she comes.
Howard: Smart. Whisper so the deaf chick doesn't hear you!

Sheldon: The entrance to the dungeon is a moss covered door. You manage to open it only to find yourself face-to-face with a hideous, foul-smelling, moss-covered ogre. What do you do?
Howard: I say, "Hey Ma, what's for dinner?"

Penny: This girl is trouble. What kind of relationship is it where you buy her gifts and she gives you sex?
Raj: The best one I've ever had!

Sheldon: The dice giveth and the dice taketh away.

Raj: I don't know if I wanna play any more.
Sheldon: Because you don't have a girlfriend? Well, good lord, if that becomes a reason to not play dungeons and dragons, this game is in serious trouble.

News Stories

Title Date Posted
Episode 5.04 Ratings: #1 Show of the Night October 7, 2011

The October 6, 2011 episode of The Big Bang Theory was the highest rated show on Thursday for the third week running. The show dominated its slot and was the top show of the night in households, total viewers, adults 25-54 and adults 18-49.  Full story

CBS Announces Episode 5.04 September 16, 2011

CBS has announced the October 6 episode of The Big Bang Theory. Katie LeClerc, star of the ABC Family drama Switched at Birth, guest stars as Emily, Raj's new girlfriend, in the episode.  Full story


As the guys are playing Dungeon and Dragons in the apartment, Raj bemoans his lack of a love life. Raj blames the U.S. for its promises of beautiful large-breasted women, and doesn't feel like playing the game any more. Sheldon thinks Dungeons and Dragons is in trouble if not having a girlfriend is a valid excuse not to play. Meanwhile, the girls are in Penny's apartment having a wax. When Bernadette mentions how lonely Raj is, Penny decides they should set him up with someone.

At the Cheesecake Factory, Sheldon decides he will not outsource all his trivial decision making to a throw of the dice, freeing up his mind to focus on the bigger picture. Penny introduces Raj to Emily, who is deaf, with Howard using sign language to help Raj talk to her. The next day, Howard helps Raj talk to Emily, tempering down some of Raj's more bizarre comments to make him look better.

In Sheldon and Leonard's apartment, Penny compliments Sheldon on his new mustache - the dice having decided how much of his face he should shave. Howard wonders why Sheldon is still letting the dice control his life, especially when Leonard points out Sheldon got chafed testicles because he no longer wears underpants as a result. Raj is absent from the group as he's on another date with Emily. Penny is concerned when she hears about the expensive gifts Raj has bought Emily, including diamond earrings and a leased car. When Sheldon reveals just how wealthy the Koothrappali family is, Howard is angry that Raj made him by him a churro the last time they went to the zoo.

Howard and Penny are at the gym to confront Emily about the gifts she's accepting from Raj. When Howard gets distracted and doesn't translate Penny's carefully worded comments, he ends up asking Emily outright whether she's a gold digger, eliciting an angry response from Emily. An angry Raj arrives at Penny's door to criticize her for ambushing Emily. Penny tries to convince Raj that he can do better than Emily, but he just believes Penny's jealous that Raj is with another woman.

Raj's parents start a video chat with him to say Penny had called them to let them know what's happening with Emily. The Koothrappalis tell him he will be cut off if he doesn't break up with Emily. Raj chooses love instead of money, and tells Emily how he chose her instead of all his money. Later, Raj is sobbing in Penny's apartment because she broke up with him. When Penny shows Raj sympathy, he yet again thinks she's hitting on him. Later, at the Cheesecake Factory, the guys stick Raj with the bill now they know just how rich he is.

Comments (53)

Somdev India, 06:07 May 29 2012.
Rolling a dice to find trivial answers...very foolish,even Sheldon would know that....i think it's time for the nerdy 4 to return back to their normal ways
Mike Canada, 20:57 Mar 1 2012.
Oddly enough the first thing I thought of when this episode started was.. "What version of D&D were they playing?"
JC Philippines, 05:56 Dec 31 2011.
Where does the title come from?
2%u221E& United Kingdom, 10:26 Nov 10 2011.
I like seeing the show evolve. It is the real test of a good writer. The original premise of the show was so simple it had to move on. I've like all the seasons so far, this one is no different (so far!)
Jonathan Harvey United Kingdom, 18:24 Nov 3 2011.
Too many characters are and too many storylines have saturated the show. Too much is going on in each episode, and Amy and Bernadette are poor additions to the cast.
Steve Black United States, 02:00 Oct 25 2011.
Rolling RPG Dice ? Really? .. Even Sheldon would see how idiotic that is. Highly implausible plot line. I sure wish Leonard would stop whining. Stop writing him as a nebish! .. Geek/Nerd/Socially inept is one thing, but he's becoming pathetic.
fling thing Macedonia, 06:37 Oct 20 2011.
in season 4 ep. the desperation emenation Raj says he has a deaf girlfriend yet we don't see her in any of the forthcoming episodes. could this episode be some sort of look back to that aspect of raj's life?
derrick Canada, 07:36 Oct 15 2011.
ya raj hook-up with a hard of hearing girl is cool but I think it was wrong for her to leave him when he could not buy her thinks no more bad girl.
Abey john Ethiopia, 11:31 Oct 13 2011.
things are the result of mind and observation if u believe and work hard yes u can
Steffen Denmark, 07:46 Oct 13 2011.
I think that this season is funny, Amy has become importent to the story. But i think Penny and Lennerd shuld get back together. the only one i find annoying is Raj's Sister.

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