Guest Star: Brian George

Brian George is an Israeli-born character actor known for his guest appearances on Seinfeld as restranteur Babu and as Raj's gynecologist father on The Big Bang Theory. His other TV credits include Once Upon a Time in Wonderland and Elementary.

You are viewing a list of Brian George's 9 appearances on The Big Bang Theory.

  • The Grasshopper Experiment

    Season 1, Episode 8 - The Grasshopper Experiment
    Aired November 12, 2007

    When Raj is set up on a blind date by his parents, he worries he won't be able to talk to his date. Meanwhile, Penny practices her bar tending skills, resulting in the discovery that Raj can talk to women with the help of alcohol.

    Appeared as Dr. Koothrappali

  • The Big Bang Theory

    Season 2, Episode 23 - The Monopolar Expedition
    Aired May 11, 2009

    When Sheldon is offered the opportunity to conduct research at the North Pole, he invites the rest of the guys along with him. The impending three-month expedition forces Penny & Leonard to reconsider their feelings for each other.

    Appeared as Dr. Koothrappali

  • The Herb Garden Germination

    Season 4, Episode 20 - The Herb Garden Germination
    Aired April 7, 2011

    After a rumor spreads that Bernadette is planning to break up with Howard, Sheldon and Amy spread their own rumors as a social experiment.

    Appeared as Dr. Koothrappali

  • The Roommate Transmogrification

    Season 4, Episode 24 - The Roommate Transmogrification
    Aired May 19, 2011

    Bernadette receives her Ph.D., leaving Howard as the only scientist in their group who isn't a doctor. Meanwhile, Raj becomes Sheldon's new roommate after Leonard starts staying with Priya in his apartment and Raj overhears their "Star Trek"-inspired bedroom fantasy.

    Appeared as Dr. Koothrappali

  • The Infestation Hypothesis

    Season 5, Episode 2 - The Infestation Hypothesis
    Aired September 22, 2011

    When Penny takes in furniture she found in the street, germophobe Sheldon is horrified and urges Penny to remove the chair from the building. Amy finds herself caught in the middle of the argument between Sheldon and Penny. Meanwhile, Leonard is still adjusting to his long-distance relationship with Priya and tries to spice things up between them.

    Appeared as Dr. Koothrappali

  • The Wiggly Finger Catalyst

    Season 5, Episode 4 - The Wiggly Finger Catalyst
    Aired October 6, 2011

    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.

    Appeared as Dr. Koothrappali

  • The Transporter Malfunction

    Season 5, Episode 20 - The Transporter Malfunction
    Aired March 29, 2012

    Penny buys Leonard and Sheldon rare "Star Trek" collectibles as a thank you for the all times they've helped her out. The guys initially decide to keep their toys in the box, but Sheldon's "Inner Spock" convinces him to open his up - with disastrous results. Meanwhile, when Raj asks his parents to set him up on a blind date, he thinks he's found the "future Mrs. Koothrappali".

    Appeared as Dr. Koothrappali

  • The Clean Room Infiltration

    Season 8, Episode 11 - The Clean Room Infiltration
    Aired December 11, 2014

    Leonard and Howard are performing an experiment in the university clean room, but when they accidentally let a bird in they need Raj's help. Meanwhile, as Amy hosts an authentic Victorian Christmas party, Sheldon resents her forcing him to celebrate the holidays and shops for the perfect gift to ruin Christmas.

    Appeared as Dr. Koothrappali

  • The Graduation Transmission

    Season 8, Episode 22 - The Graduation Transmission
    Aired April 23, 2015

    When Leonard is set to give the commencement address at his former high school, a canceled flight threatens to stop him giving the speech. Meanwhile, Howard's engineering skills are tested when he and Sheldon try fix Raj's toy helicopter, while Raj plays his parents against each other after his father cuts him off financially.

    Appeared as Dr. Koothrappali

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