Stephanie Barnett
Stephanie Barnett was introduced to the series as yet another one of Howard's fruitless romantic conquests. Despite the initial success of their relationship, he ended up dumping the sassy surgical resident over text once he realized that she had slowly been moving her things into his room.
Played by Sara Rue
Sara Rue left The Big Bang Theory after her split with Leonard. However, the actress has been working in television ever since. She spent several years playing Brenda on Rules of Engagement and later Karen Delfs on Bones.