One of Screen International's "Stars of Tomorrow," Australian actor David Lyons portrays Dr. Simon Brenner, "ER's" newest attending physician.

A graduate from the National Institute of Dramatic Art (NIDA), Australia's most prestigious acting college, Lyons has performed on stage with both of Australia's leading theatre companies, the Sydney Theatre Company and the Melbourne Theatre Company.

In 2005, he won a recurring role in the hugely popular police drama "Blue Heelers." In addition to a role in the longtime cult soap, "Neighbours," Lyons also starred as Leading Seaman Josh "ET" Holiday in the high-seas action series "Sea Patrol."

On the silver screen, Lyons can be seen in the feature "Storm Warning," directed by Jamie Blanks ("Urban Legend," "Valentine") and distributed by Bob Weinstein's Dimension Films.

He also contributed a riveting performance as a gambler with a dark secret in the Outback thriller "Cactus," starring alongside Aussie screen icon Bryan Brown.