V. M. Koothrappali

Dr. V. M. Koothrappali is the husband of Mrs. Koothrappali, and father to Raj, Priya, 3 other boys and 1 girl according to Raj. To date, all of his appearances have been in a video chat window, together with his wife.

He is a wealthy gynecologist in India, drives a Bentley and has a large house full of servants. He believes academics have a limited earning potential, and wishes his son would have become a gynaecologist too, as he is apparently unaware of his son's condition. ("The Grasshopper Experiment")

He and his wife constantly try to match Raj with Indian girls, even though Raj disapproves of this on several occasions. He has also shown concern (voiced by his wife) about Raj's close friendship with Howard, which for them could be a sign that he is gay. They are also under the impression that Leonard and Sheldon are a gay couple, although Leonard quickly corrects them. Once while Raj was drunk, he introduced Penny to them as his girlfriend. After Penny tells them that they would be lucky to have her as a daughter-in-law, Dr. V.M. thinks that she is feisty. They also threatened to cut off his allowance when Penny told them that the deaf girl Emily was using her handicap to get Raj to buy her extremely expensive gifts such as rubies, who then dumped him.

Trivia

 * He is one of three fathers of the main cast who has physically appeared on the show; the others being Penny and Bernadette (Leonard's father is only mentioned, Sheldon's is dead, Howard's left him at 11 and Amy's and Stuart's have never been seen or mentioned). This makes him the only father of a male cast that has appeared on the show.