This is the first marriage for de Ravin and Janowicz, both 24. The couple met "through friends," de Ravin told PEOPLE in March, "which is the best way to meet someone, isn't it? We've been together nearly four years."
De Ravin added that she'd always wanted a small wedding. "I'd never have a large wedding," she said. "That's not the kind of person either of us is. We're both quite low-key people."
Indeed, De Ravin's rep, Jeff Raymond, tells PEOPLE that to his knowledge, none of her Lost castmates were present at the couple's intimate nuptials.
An Australia native, de Ravin lives in Los Angeles with Janowicz and commutes to Lost's Oahu, Hawaii, set.
Both actors recently had roles in indie films, De Ravin in Brick and Janowicz in The Chumscrubber.