Paul Edney is a member of the island survivor background cast of Lost; he plays an unnamed redshirt. After hearing about Lost "through the grapevine" and contacting Julie Carlson, Edney was hired as a background cast member on the show (The Lostpedia Interview:Paul Edney). From his website, it appears he also guest starred as an Australian police officer on the show.
He also runs a website that shows and lists other background actors of the show (linked below).
Edney appears to specialize in small background roles as an extra, especially roles involving the military.
His credits (often nonspeaking) include:
Mission Impossible III
Without a Trace
50 First Dates
Paul is exactly six feet tall, weighs 200 pounds. He has light brown hair and blue eyes. Edney also has dual citizenship in the United States and the United Kingdom.