Question: Who was an actor as well as a director, Paul Bartel or Geoffrey Sax?

Context paragraphs:
Eating Raoul: Eating Raoul is a 1982 black comedy film about a married couple living in Hollywood who resort to killing swingers for their money.  It was directed by Paul Bartel and written by Bartel and Richard Blackburn.  The writers also commissioned a single-issue comic book based on the film for promotion; it was created by underground comics creator Kim Deitch.

White Noise (film): White Noise is a 2005 supernatural horror thriller film, directed by Geoffrey Sax.  The title refers to electronic voice phenomena (EVP), where voices, which some believe to be from the "other side", can be heard on audio recordings.  The film is not related to the postmodern novel "White Noise" by Don DeLillo.

Scenes from the Class Struggle in Beverly Hills: Scenes from the Class Struggle in Beverly Hills is a 1989 American black comedy film co-written and directed by Paul Bartel.  "Scenes" re-unites Bartel with his "Eating Raoul" co-stars Mary Woronov and Robert Beltran.  "Scenes" also stars Jacqueline Bisset, Ray Sharkey, Ed Begley, Jr., Wallace Shawn, Paul Mazursky, and Rebecca Schaeffer.

Othello (2001 film): Othello is a 2001 British television film starring Eamonn Walker, Christopher Eccleston and Keeley Hawes.  It is an adaptation in modern English of William Shakespeare's play "Othello".  It was scripted by Andrew Davies and directed by Geoffrey Sax.

Christopher and His Kind (film): Christopher and His Kind is a 2011 BBC television film.  It tells the story of Christopher Isherwood's life in Berlin in the early 1930s.  The film, adapted by Kevin Elyot from Isherwood's autobiography "Christopher and His Kind", was produced by Mammoth Screen and directed by Geoffrey Sax.  Isherwood is played by Matt Smith, whilst the cast also includes Toby Jones, Douglas Booth, Imogen Poots and Iddo Goldberg.

Killer Net: Killer Net is a British television crime drama mini series, first broadcast on Channel 4 in May 1998.  The series is set around the lives of three students living in Brighton, whose contribution to an internet based computer game leads them right into the heart of an investigation into a serial killer.  The drama was written and produced by Lynda La Plante, directed by Geoffrey Sax and featured a cast of up and coming actors.  One of the main selling points of the series was that it starred Jason Orange of Take That, but it was also one of the introductions to the small screen of Paul Bettany.

Shelf Life (film): Shelf Life is a 1993 film directed by Paul Bartel.  The final film Bartel directed before he died in 2000, it stars O-Lan Jones, Andrea Stein and Jim Turner.

Margery and Gladys: Margery and Gladys is a one-off television drama/film, broadcast on 21 September 2003.  Starring Penelope Keith and June Brown as the title characters, it was produced by Carlton Television for ITV and directed by Geoffrey Sax.  Upon first broadcast, it was watched by a total of 7.91 million viewers.

Paul Bartel: Paul Bartel (August 6, 1938 – May 13, 2000) was an American actor, writer and director.  Bartel was perhaps most known for his 1982 hit black comedy "Eating Raoul", which he wrote, starred in and directed.

Geoffrey Sax: Geoffrey Sax (sometimes credited as Geoff Sax) is a British film and television director, who has worked on a variety of drama productions in both the United Kingdom and the United States.

Supporting paragraphs: Paul Bartel Geoffrey Sax
Answer: Paul Bartel