From Wikipedia, the free encyclopedia Samuel Emmett "Sam" Horrigan (born August 23, 1981) is an American actor best known for his role as Quentin Kelly on the hit ABC sitcom Grace Under Fire. Sam played Spike Hammersmith in the movie Little Giants and also has made guest appearances on TV shows such as One Tree Hill, Joan of Arcadia, Desperate Housewives, Still Standing, Grounded for Life, 8 Simple Rules, and Veronica Mars where he played a guy named Pop. Also appeared in Accepted as one of th ...