Played by: Kevin Sussman

Seen actor Kevin Sussman outside of Big Bang Theory? Well, then you’re likely an Ugly Betty fan, where Sussman portrays lead Water. In the 1990s, Sussman worked his way up from commercials to films playing a variety of nerd characters, which he still enjoys doing today!

While Sussman played Stuart for ten years, it wasn’t until the series’ sixth season that he was promoted to a series regular on the Big Bang Theory. Most recently, Sussman has started starring in the Progressive Insurance commercials alongside the iconic character Flo. He’s also created two recent sitcoms, Fox’s The Ever After Part and CBS’ The Second Coming of Rob.