<Li> Melissa Rauch as Dr. Bernadette Rostenkowski - Wolowitz </Li> <Li> Kevin Sussman as Stuart Bloom </Li> <Ul> <Li> Riki Lindhome as Ramona Nowitzki </Li> <Li> Ira Flatow as himself </Li> <Li> Swati Kapila as Ruchi </Li> <Li> Beth Behrs as Nell </Li> <Li> Walton Goggins as Oliver </Li> <Li> Bill Gates as himself </Li> <Li> Jerry O'Connell as George Cooper Jr . </Li> </Ul> <Li> Riki Lindhome as Ramona Nowitzki </Li>

The big bang theory season 11 guest star