Roark Grant Critchlow is a Canadian actor, best known for appearing on the daytime US soap opera Days of Our Lives from 1994 to 1999 as Dr. Mike Horton. He also had a recurring role on the soap Passions. He was in the TV movie The Perfect Husband: The Laci Peterson Story, the Lifetime made-for-TV movie Pregnant at 17 as well as appearing in the Nickelodeon series Drake & Josh as Dr. Glazer. He also portrayed Zoey Brooks' father in Zoey 101. Roark has had smaller roles in movies like Mr. Deeds with Adam Sandler and TV shows such as Street Justice, Malcolm in the Middle, Entourage, Charmed, Highlander: The Series, Afterworld and Friends. In 2009, he appeared in an episode of the re-imagined Battlestar Galactica. He also appeared in the 2009 movie Hydra as Sean Trotta. Critchlow recently had a recurring role on the science fiction TV show V and on ABC Family's breakout-hit Pretty Little Liars, where he has the role as Tom Marin (Hanna Marin's father). He was also in Charmed, in which he played the man with the greed sin. Critchlow was born in Calgary, Alberta, Canada and grew up in Summerland, British Columbia. He was a theater major at the University of Victoria, and married Maria Brewer in 1990, with whom he produced and co-starred in Making it Home. Roark and Maria have three children: Jara Shea, Reign, and Credence. Roark and Maria divorced in 2006. Roark enjoys many sports and was named after Howard Roark, a character in the book The Fountainhead. On June 23, 2010, Roark returned briefly to Days of Our Lives in the role of Dr. Mike Horton.