Don Summers

Born: 13 July 1920, Idaho, USA

Died: 3 July 1998, Maryland, USA

Don Summers was a child actor who later fought in WWII. After  the war he became a stunt man and actor in westerns and action films.

A Walk in the Sun (1945) as Dugan (uncredited)

Don Summers is the actor lying in the foreground after his character is killed. I know there is a better shot of him in this film somewhere.

George Turner

Born: 10 January 1916, Sallisaw, Oklahoma, USA

Died: 25 February 1996, Phoenix, Arizona, USA

A Walk in the Sun (1945) as Reconnaissance Motorcycle Rider (uncredited)

With Dana Andrews and Herbert Rudley.

George Dee

Born: 11 April 1901, France

Died: 24 August 1974, San Mateo, California, USA 

Casablanca (1942) as Lt. Casselle (uncredited)

George Dee is in the dark uniform. On the right is Charles La Torre.

Curt Bois

Born: 5 April 1901, Berlin, Germany

Died: 25 December 1991, Berlin, Germany

Casablanca (1942) as Pickpocket

Curt Bois is standing, stealing from Gerald Oliver Smith. On the right is Norma Varden.

Gerald Oliver Smith

Born: 26 June 1892, London, England, UK

Died: 28 May 1974, Woodland Hills, Los Angeles, California, USA

Casablanca (1942) as Pickpocketed English Gentleman (uncredited)

Gerald Oliver Smith is on the left, with Curt Bois.

Donald Mayo

Born: 23 October 1935, Bellflower, California, USA

Died: 29 November 1992, Alhambra, California, USA

The Contender (1944) as Mickey Farrel