Kasten was born in Baltimore, Maryland and grew up performing in local television and theater with his family. He attended the Baltimore School for the Arts where he was in an acting ensemble with Tupac Shakur and Jada Pinkett. Kasten attended Emerson College in Boston, Massachusetts. In 1992, Kasten moved to Los Angeles on an Emerson internship program, but soon began to work various roles in film crews while he learned the craft of film editing.
Before starting work on his own feature films, Kasten worked odd jobs in the film industry, including as William Friedkin’s personal assistant during production of Jailbreakers and as video editor for Playboy TV. Soon, Kasten became known for his editing skills and became a go-to editor for straight-to-video distributors and cut over a dozen feature films before the age of 25. Kasten first made his mark with Mindfire/CFQ Entertainment as editor of the superhero spoof The Specials directed by screenwriter Craig Mazin and featuring Rob Lowe.
Kasten has produced and edited dozens of behind–the-scenes specials for studio films and created and edited multiple reality shows for television. He has directed recreation shows for networks A&E Biography, Discovery ID and directed all episodes of History Channel’s controversial The Exorcist Files which was pulled following pressure from the Vatican.
When Erika Larsen, the daughter of the founders of The Magic Castle, created the Brookledge Follies in 2008 and reopened her family’s historic Los Angeles Theater, she chose Kasten as its original director. During his tenure at Brookledge, he collaborated with world-renowned variety performers, including Penn Jillette and Michael Carbonaro.