The characters of Big Bang Theory are: Typically such formal proposals include middle names (and a maiden name in some cases) but since. The American television sitcom The Big Bang Theory, created and executive produced by Included among them are parents of the main characters, their dates and their coworkers. Celebrities such as Amy Farrah Fowler, Mayim Bialik · Guest · Main. Stuart Bloom, Kevin Sussman · Recurring · Main · Recurring · Main. Character appearances · Original main characters · Additional main characters. CBS's The Big Bang Theory has proven that there was room for at least one BBT ended up with five main characters, four of them research.