watch 01:11 The Loop (TV) Do you like this video? This article is a stub. You can help the Smallville Wiki by expanding it. Tom O'Brien (April 12, 1965) is an American actor. O'Brien played Roger Nixon in the following episodes: Season 1 - "X-Ray", "Leech", "Obscura" and "Tempest" Season 2 - "Vortex" Other roles Call to Glory - Patrick Thomas Timecop - Ian Pascoe Supernatural - Clark Adams in "Long Distance Call" External links Tom O'Brien at the Internet Movie Database Retrieved from "https://smallville.fandom.com/wiki/Tom_O%27Brien?oldid=308346" Categories: Stubs Community content is available under CC-BY-SA unless otherwise noted.