Jim Nieb was born in Ohio to James and Iantha Nieb, and from a young age, he demonstrated a natural flair for performance. Since 1991, he has worked consistently as an actor, comedian, impersonator, and variety performer, taking on a wide range of projects across various mediums, including films, television, Shakespeare in the park, and even eating fire at Renaissance festivals.
Throughout his diverse career, Jim has honed his skills in improvisation, which he began studying in high school. He was a long-time member of the comedy improvisation group ComedySportz in Washington, D.C., as well as a member of The Society improv in Los Angeles.
In 2004, Jim made the move to Los Angeles, where he has had the opportunity to work with some of the biggest names in the industry, including Clint Eastwood, Pete Farrelly, and J.J. Abrams. He has also made several appearances on the Jimmy Kimmel Live show, participating in a variety of sketches and serving as one of the main actors in their popular "How Long" segments.
In addition, Jim was part of the audience prank for the 2017 Oscar Show, playing the role of a Hollywood tour guide. He has also trained at The Groundlings and the well-respected Playhouse West Theatre and School in North Hollywood, which was founded by Robert Carnegie and co-founded by Jeff Goldblum.
In 2009, Jim joined the teaching staff at Playhouse West, where he taught Meisner technique classes and founded the original Playhouse West Comedy Program, which later became The Zoo Comedy. The program focused on comedy improvisation and was designed to help students develop their skills in this area.
In the summer of 2017, Jim began teaching on-camera acting at the Margie Haber Studio in West Hollywood, California. He added improv classes to his teaching schedule at the studio in the spring of 2019.