William Roberts

Born: 18 December 1921, Yolo County, California, USA
Died: 9 April 1997, Waldport, Oregon, USA

William Roberts was bit part actor who was given the lead in a couple of B-movies.

The Yanks Are Coming (1942) as Bob Reynolds

Lila Leeds

Born: 28 January 1928, Dodge City, Kansas, USA
Died: 15 September 1999

Apart from appearances in some 1940s films, Lila Leeds is most famous for being arrested with Robert Mitchum on 31 August 1948 for the possession of marijuana.

So You Want to Be a Detective (1948) as Veronica Vacuum (uncredited)

George O'Hanlon

Born: 23 November 1912, Brooklyn, New York, USA
Died: 11 February 1989, Los Angeles, California, USA

Man from Headquarters (1942) as Weeks, reporter

So You Want to Be a Detective (1948) as Joe McDoakes aka Philipe Snarlowe

Kronos (1957) as Dr. Arnold Culver

George O'Hanlon is on the right, with Jeff Morrow and Barbara Lawrence.

Frank Albertson

Born: 2 February 1909, Fergus Falls, Minnesota, USA
Died: 29 February 1964, Santa Monica, California, USA

Man from Headquarters (1942) as Larry Doyle

Killer Dill (1947) as William T. Allen

With Stuart Erwin.

Arleen Whelan

Born: 1 September 1914, Salt Lake City, Utah, USA
Died: 7 April 1993, Orange County, California, USA

Castle in the Desert (1942) as Brenda Hartford

With Sidney Toler.

Anthony Holles

Born: 17 January 1901, London, England
Died: 5 March 1950, London, England

This'll Make You Whistle (1936) as Sebastian Venables