Among Power's first television roles were in Life with Mikey and "Joe's Wedding". In 2004 Power played the role of series regular "Warren" on the controversial RTÉ series "The Big Bow Wow". After one season the show was canceled and then 2005 Power was hired to play "Garth O’Hara" in the RTÉ Soap Opera "Fair City". Power was cast as "Frankie" in the Irish coming-of-age film "Cowboys and Angels". Power was then cast as "John" in Gilles MacKinnon's "Tara Road", which filmed in Cape Town, Dublin and London.