Mark Harelik as Dr. Eric Gablehauser
Mark Harelik added some intrigue to The Big Bang Theory as Sheldon’s boss, Dr. Eric Gablehauser, especially when he asked Sheldon’s mother out on a date. Beyond his two-season stint on the show, Mark has appeared in numerous high-profile projects such as Jurassic Park III and Breaking Bad, among others.
Needless to say, he’s far from facing financial troubles. In addition to his successful acting career, he’s notably a prolific and successful playwright, with a slew of theater productions under his belt.
April Bowlby as Rebecca
April Bowlby made a guest appearance on The Big Bang Theory as Rebecca, geologist Bert’s short-lived girlfriend. However, this wasn’t her television debut, as she had already appeared in various roles since 2004, including guest spots in four episodes of How I Met Your Mother and a main role in Drop Dead Diva. Her career continues with a current main role in Titans, showing she’s far from done in the industry.