William Theodore Link (December 15, 1933 – December 27, 2020) was an American film and television screenwriter and producer who often worked in collaboration with Richard Levinson. Description above from the Wikipedia article William Link, licensed under CC-BY-SA, full list of contributors on Wikipedia.
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The Boys 1991
Writer, Executive Producer
Terrorist on Trial: The United States vs. Salim Ajami 1988
Writer
Guilty Conscience 1985
Writer, Executive Producer
The Guardian 1984
Writer
Prototype 1983
Writer
Take Your Best Shot 1982
Executive Producer, Writer
Rehearsal for Murder 1982
Writer, Executive Producer
Crisis at Central High 1981
Writer, Executive Producer
Stone 1979
Story
Murder by Natural Causes 1979
Writer, Executive Producer
The Storyteller 1977
Writer, Executive Producer
Rollercoaster 1977
Screenstory, Screenplay
Charlie Cobb: Nice Night for a Hanging 1977
Story
The Gun 1974
Producer, Story, Teleplay
The Execution of Private Slovik 1974
Writer, Executive Producer
The Judge and Jake Wyler 1972
Writer, Producer
That Certain Summer 1972
Writer, Producer
Ransom for a Dead Man 1972
Story
Ellery Queen: Don't Look Behind You 1971
Writer
Two on a Bench 1971
Writer, Producer
Who Killed the Mysterious Mr. Foster? 1971
Writer
The Psychiatrist: God Bless the Children 1970
Story
Istanbul Express 1969
Writer
Trial Run 1969
Story
Peter Falk versus Columbo 2019
as Self (archive footage)
Whispers in the Dark 1992
Executive Producer
Vanishing Act 1986
Teleplay
The Hindenburg 1975
Screenstory
Ellery Queen: Too Many Suspects 1975
Teleplay, Producer
A Cry for Help 1975
Executive Producer
Credits from TMDB.