Clark Gregg

A frequent collaborator with playwright-filmmaker David Mamet, Gregg's early film appearances included such Mamet efforts as "Things Change" (1988) and "The Spanish Prisoner" (1997). He later garnered substantial praise for his turn as a pre-operative transsexual opposite Adrian Grenier in "The Adventures of Sebastian Cole" (1998). Gregg made his debut as a feature film screenwriter with the paranormal mystery, "What Lies Beneath" (2000), …