
Sanford Meisner (August 31, 1905 – February 2, 1997) was an American actor and acting teacher who developed an approach to acting instruction that is now known as the Meisner technique. While Meisner was exposed to method acting at the Group Theatre, his approach differed markedly in that he completely abandoned the use of affective memory, a distinct characteristic of method acting. Meisner maintained an emphasis on "the reality of doing", which was the foundation of his approach.
Description above from the Wikipedia article Sanford Meisner, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Mikey and Nicky
1976 · as Dave Resnick

Requiem
1995 · as Restaurant Patron

Tender Is the Night
1962 · as Franz Gregorovious

Broadway's Dreamers: The Legacy of the Group Theatre
1989 · as Self (archive footage)

Sanford Meisner Master Class
1990 · as Himself

She's The Best Thing in It
2015 · as Self (archive footage)

Sanford Meisner: The American Theatre's Best Kept Secret
1990 · as Self

The Story on Page One
1959 · as Phil Stanley