VANCOUVER - It's an awfully long way from Yellowknife to the posh postal code made famous by the 1990s teenage TV soap that's about to make its return to the small screen. But Dustin Milligan somehow makes the trip from Canada's north to Beverly Hills - or at least to90210 - seem like the natural next step in his so-far storied acting career.

Milligan plays Ethan Ward, West Beverly...