Sergio Mimica-Gezzan (also known as Srdjan Mimica, ) ) (born May 2, 1956) is a Croatian-born American film and television director and son of famous Croatian film director Vatroslav Mimica. He has received three Directors Guild of America awards for his work as an assistant director and is now a regular lead director in episodic television. He has often worked with Steven Spielberg as an assistant director. He directed six episodes of the reimagined Battlestar Galactica, two episodes of Heroes, and the television adaptation of Ken Follett's The Pillars of the Earth.