Brian Posehn as Bert Kibbler
In the show, American Actor Brian Posehn portrayed the character Bert Kibbler, a geologist who works in Caltech. His character is shown to have a romantic interest towards Amy Farah Fowler but unfortunately failed. The actor began his acting career with guest appearances and small roles in TV shows. He is also known to appear in some films, do stand-up comedy, and in 2006, the label Relapse Records released his album.
Brian Posehn As Bert Kibbler
Pamela Adlon as Halley Wolowitz
The character Halley Wolowitz is known to be the daughter of Howard and Bernadette Wolowitz; despite the role being heard from the show, she has not been seen directly. Pamela Adlon voices the character in December of 2016. Aside from her work in The Big Bang Theory, Pamela Adlon also voiced Bobby Hill on King of the Hill and Ashley Spinelli from Recess. Pamela also appeared in Grease 2, Californication, Louie, and Better Things for her on-screen roles.
Pamela Adlon As Halley Wolowitz