In 1997, Egglesfield moved to New York City and, while continuing with his modeling career, began booking national commercials and lead guest appearances on such shows as Law & Order: SVU and Leap of Faith. As a member of the Riant Theatre Group, he starred in numerous plays, including A Few Good Men. Having decided to pursue an acting career full time, he moved to Los Angeles in 2002 and immediately booked a pilot for the WB. Working steadily since, his list of credits include the lead in three films and more guest appearances on TV shows, including Gilmore Girls, Nip/Tuck and Charmed. Most recently he starred in the film Vampires: The Turning, Must Love Dogs and Beautiful Dreamer, a World War II love story.
Egglesfield currently lives in New York City and, when not taping at All My Children, enjoys exploring the city, including going to the theatre. He also runs marathons and has completed the Chicago Marathon twice and the San Diego Marathon, in which he participated as a member of Team in Training that helps raise money for the Leukemia and Lymphoma Society. He also enjoys tutoring high school kids in math once a week at The Door Youth Center in lower Manhattan.
Egglesfield has a company that lets people put personal messages on their t-shirts. He gave one to ABC7's Tracy Butler that said 'I love Colin.' The t-shirts are available at the Chicago Museum of Contemporary Art or on his Web site at Shoutoutclothing.com.