He grew higher inside Branford, Connecticut but later moved to New York City to join the cast when Scott Chandler on the ABC soap opera All My Children in 1996 which made him be popular. When 2 years by using a a measure of laundry soap, he left a indicate in the fall of 1998 to explore more chance.

That equivalent month, Cosgrove moved to Los Angeles to join the cast when Matt Durning on the popular FOX soap Beverly Hills 90210 which he remained until the indicate's cancellation within 2000.

Within June 2002, he moved back to Up to date York to join a cast when Bill Lewis III on the CBS soap Guiding Light and will exit a indicate in the fall of 2005 when his contract expires to move back to Californithe to start out a recently role in the midseason series In Justice which will air next seasin on ABC.