Sergey Sheptun (born May 21, 1992), better known professionally as Serg Shepard, is a Ukrainian pornographic actor, model and content creator. Born in Kharkiv, Ukraine, he moved to the United States in the mid-2010s and later settled in New York City. Before entering adult entertainment, Shepard worked as a dancer, musician and nude model. He made his professional gay pornography debut in 2022 with NakedSword’s "New Arrivals" and later signed as an exclusive performer with Carnal Media, appearing across its FunSizeBoys, ScoutBoys, BoyForSale and Carnal+ brands. Shepard has since expanded his career through work with MenAtPlay, Falcon Studios, NakedSword and Raging Stallion, with credits including "Head to Head", "In the Depths" and "Ashes Before Dawn". In 2025, he won Best Jock at the GaySight Awards.