Efim Raikin Ben-Ari (Hebrew: אפיים רייקין בן ארי; 15 July 1897 – 2 January 1968) was a Russian-born actor, stage director, and teacher, mostly in America.

[3] The company produced a landmark production of The Dybbuk, a play which has gone on to be a staple of Jewish theatre.

[1] A follower of the work of Constantin Stanislavski, Ben-Ari subsequently taught acting in Erwin Piscator's theatre workshop at the New School for Social Research, where his students included Walter Matthau, Marlon Brando, Tony Curtis, Tony Franciosa, and Rod Steiger.

He also appeared in film and television roles in productions as disparate as Adventures of Superman, Al Capone, and Combat!.

He was the drama director of the Brandeis Institute in Simi Valley, California, where he taught for many years.