In 2000, Hemecker founded Mythic Films, a full service feature film, TV and commercial production company. After directing
Witchblade, Hemecker served as the
showrunner, writer, and producer for the subsequent
television series, which aired from 2000 to 2002. He directed 21 episodes of the ABC fantasy/drama series
Once Upon a Time. In 2014, he joined as a recurring director on
The CW superhero series
The Flash. He directed the first-season episode, "Tricksters", in which
Mark Hamill reprised the role of
the titular supervillain. He also directed the second season crossover episode with
Arrow, "
Legends of Today". In the third season, Hemecker returned to direct the second episode of the season, "Paradox". ==Filmography==