


Marsden continued his career with many guest star appearances on prime time sitcoms and became very much in demand as a voice over artist at a very young age. At the same time, Jason also had his first voice acting role in a cartoon, that of Cavin in the Disney cartoon TV series Disney's Adventures of the Gummi Bears, as well as being the young announcer of the (new) Mickey Mouse Club and other Disney informercials. This was followed soon afterwards by the role of Eddie Munster in the TV series remake of The Munsters titled The Munsters Today. He continued this role for two years, while still attending elementary school. He played Alan Quartermaine, Jr., in the long running American soap opera General Hospital. He went on to do various commercials and memorable recurring roles. It wasn't long after that when Marsden booked his first major role, a movie called Robot Jox which was filmed in Rome, followed by a national commercial for McDonalds for Halloween featuring the Mcpumpkin. CED Children's agent, Bob Preston, was extremely impressed with Jason and immediately signed him for representation. Barth introduced the young actor and his parents to one of Hollywoods top children's agencies, Cunningham, Escott and Dipene. Marsden was discovered by producer Bud Barth (Director of Del Mar Media Arts).

Jason and his parents moved from Rhode Island to Fullerton, California in August 1985 when he was 10, where he attended Laguna Road Elementary School while pursuing his acting career.

His mother Linda Marsden, is a former fashion model, and his father, Myles Marsden, is a former Premier dancer of the Yugoslav National Ballet and co-founder of the first regional ballet company in New England called State Ballet of Rhode Island. Born in Providence, Rhode Island, Marsden is the youngest of four children (he has two older stepbrothers, Rick and Mark, and one older stepsister, Ana Marsden Fox).
