Thomas Cavanagh is a Canadian actor known for his role as Eobard Thawne / Reverse-Flash and the various versions of Harrison Wells on The CW television series The Flash; Cavanagh also directed several episodes of The Flash. In 2023, he became the host of Hey Yahoo on GSN. He’s starred in a variety of roles on American television, including Ed (2000–2004), Love Monkey (2006), and Trust Me (2009), and recurring roles in Providence and Scrubs.