While travelling in Australia in his early twenties, Lepkowski became interested in acting and trained at the Western Australian Academy of Performing Arts[1] where he met his future wife, fellow British-born thespian, Frances O'Connor.
Lepkowski worked extensively in Australia on the stage, including playing Tysefew in The Dutch Courtesan, Claudio in Much Ado About Nothing, Roger & Arthur in The Balcony, Vershinin in Three Sisters, Krogstaad in A Doll's House and Orsino in Twelfth Night, all with the Melbourne Theatre Company.
From 1994, Lepkowski went on to appear in guest roles in several Australian and British TV series, including The Damnation of Harvey McHugh and Neighbours (both 1994), Halifax f.p.
In 2002, Lepkowski landed the lead role in the award-winning Scottish romantic comedy film, American Cousins, starring alongside Shirley Henderson, Danny Nucci and Hollywood stars Dan Hedaya and Vincent Pastore.
The same year he appeared in British film, Man Dancin', which starred EastEnders actor Alex Ferns.