Biography
Mark Leitner is an American television writer. He began in production and script roles, serving as script coordinator on the series Spartacus (2010–2013) and writing one episode of its third season.
Leitner later worked on Marvel's Agents of S.H.I.E.L.D. (2013–2020) as a writer, teleplay writer and story editor, contributing to its web series Marvel's Agents of S.H.I.E.L.D.: Slingshot (2016). He was executive story editor and writer on the series Helstrom (2020).
