Melissa Rauch

Sheldon gets a new group of friends when the gang start hanging out at Raj's more often, and he realises that it's actually Leonard who is the centre of their social group and not him.

Sheldon is totally distraught after someone has hacked into his 'World of Warcraft' account. Howard, Leonard and Raj try to help him find the culprit.

Raj attempts to cure his anxiety about talking to women, while Penny uses Bernadette to spy on Leonard and his girlfriend.

Sheldon and Amy experiment on their friends by spreading gossip, while Howard takes a big step in his relationship with Bernadette.

Bernadette receives her PhD and the gang begin to tease Wolowitz for being the only one among them who isn't a doctor. Meanwhile, Koothrappali becomes Sheldon's new flatmate after hearing Leonard and Priya engaging in a Star Trek bedroom fantasy.

Priya uses her legal nous to dissect the roommate agreement and put Sheldon in his place. Meanwhile, the girls take Sheldon dancing.