JESSE SPENCER and JENNIFER MORRISON at the 2005 Billboard Music Awards held at MGM Garden Arena. Las Vegas, Nevada- 06.12.05

The 27-year-olds, who play DR ALLISON CAMERON and DR ROBERT CHASE respectively, met on set in 2004 while filming a pilot episode of the hit US medical drama.

A date for the wedding has yet to be decided.

Source: WENN