Jonathan started his career appearing in numerous print ads. At the age of six, Jonathan won the role of Kevin Buchanan on One Life to Live. At the age of 9, the family relocated to Los Angeles, where Jonathan would have more opportunities to find work. Soon after their move, Jonathan landed roles on Who’s the Boss? L.A. Law, Full House, Murder She Wrote, Kate & Allie, and The Wonder Years. His big break came when he landed the starring role as Bastian Bux in The Neverending Story II: The Next Chapter, and stuttering Bill Denbrough in Stephen King’s IT. These led to roles in Sidekicks with Chuck Norris, and a role as a cross-dressing soccer player in Ladybugs, with Rodney Dangerfield; a role that boosted his popularity among teenage girls. Despite the razzing from friends and family members, even Jonathan had to admit he looked pretty good as a girl.
At the age of 17, Jonathan won the role of a lifetime as computer genius Lucas Wolenczak in Steven Spielberg’s science fiction series seaQuest DSV, competing against a list of young actors that included Leonardo DiCaprio. During the series run, Jonathan received more than 4,000 fan letters a week and required a security detail to escort him through way too many screaming fans when he’d arrive and leave the studio lot.
Jonathan found his niche as a writer while on seaQuest. He co-wrote a second season episode for the series. It was titled “The Siamese Dream.” He also wrote a script for an unproduced episode called “Paradise Lost.” Jonathan was slated to make his directorial debut, but the series was cancelled before he had the opportunity.
When the series came to an end, Jonathan appeared in a string of TV films, including Born Free: A New Adventure, Her Last Chance, Two Came Back, and Fall Into Darkness. He also lent his voice to the character Mozenrath, the young evil sorcerer, in Disney's animated series Aladdin.
Jonathan won small roles in theatrical releases including Ang Lee’s Ride with the Devil (1999), Outside Providence (1999), Bad Girls from Valley High, (a film that wasn’t released until 2005, two years after Jonathan’s death), and Hart’s War (2002). Jonathan’s last onscreen appearance was in Puerto Vallarta Squeeze costarring Scott Glenn and Harvey Keitel.
Always searching for new and innovative ideas, Jonathan spent a majority of his time later in life learning from the master of short films, Scott Michael Campbell. Scott was a driving force behind Jonathan’s posthumous directorial debut for The Slainesville Boys.