TV Shows (As Crew)
Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages
Helstrom
Mark Leitner was ? in Helstrom as 'Writer, Executive Story Editor'.TV Show Released: First Air Date
Fri, Oct 16 2020

Marvel's Agents of S.H.I.E.L.D.
Mark Leitner was ? in Marvel's Agents of S.H.I.E.L.D. as 'Writer, Teleplay, Story Editor'.TV Show Released: First Air Date
Tue, Sep 24 2013

Spartacus
Mark Leitner was ? in Spartacus as 'Writer'.TV Show Released: First Air Date
Fri, Jan 22 2010