Jack Lepiarz

Radio journalism After graduating college, Lepiarz worked as a radio anchor and producer at NPR radio station WBUR, in Boston, Massachusetts, having interned first as a senior.

Television and social media Jack joined TikTok when a clip of him brandishing a flaming whip at King Richard's Faire went viral on the social media platform. He had never performed the trick in front of an audience prior, and admitted feeling "nervous."

As of August 2026, Jack has over 4 million TikTok followers, and over 144 million "likes" on the platform.

Other work In 2023, Lepiarz participated in a study at Northeastern University, focused on the "extremes of human motor control." He wore a motion capture suit and used an "almost 5.5-foot long bullwhip and covered it in reflective motion capture markers."

Personal life Lepiarz's wife is a photographer and videographer who also helps him with social media work.