Courtney Henggeler made quite an impression as Sheldon's twin sister Missy on an episode of the new CBS television series The Big Bang Theory.
A model, actress and singer, Courtney has had a few bit parts in the television shows "House," "The Legacy of Walter Frumm,"and "Criminal Minds." The fledgling actress also starred in the 2003 low-budget movie "Bog Creatures," however "The Big Bang Theory" may just be the big bang she needs to boost her career. Internet searches for the actress are currently through the roof.
The only other info I could scrape together about Henggeler are a couple of YouTube videos. She and actress Brook Lyons teamed up with Ross Kohn for Scrimps Birthday Rap. She also starred in Kohn's video spoof of Rick Springfield's "Jessie's Girl." You can check out the videos and some photos of Henggeler from her stint on The Big Bang Theory below.