Philip Bosco

Born: 26 September 1930, Jersey City, New Jersey, USA

Trading Places (1983) as Doctor

With Denholm Elliott.

Nelson Welch

Born: 12 October 1905, Great Dunmow, England, UK
Died: 6 August 1991, Los Angeles County, California, USA

Taxi: Louie Moves Uptown (1983) (Season 5, Episode 13) as Mr. Parker

Nelson Welch is on the right, with Paul Napier.

Paul Napier

Born: 10 March 1930, Rochester, New York, USA
Died: 21 February 2015, Los Angeles, California, USA

Taxi: Louie Moves Uptown (1983) (Season 5, Episode 13) as Mr. Blount

Paul Napier is on the left, with Nelson Welch.

Lois De Banzie

Born: 4 May 1930, Glasgow, Scotland, UK

Taxi: Louie Moves Uptown (1983) (Season 5, Episode 13) as Mrs. Gwinn

John Ludlow

Born: unknown
Died: unknown

Children Galore (1955) as Mr. Ackroyd, the postman

With Violet Gould. Some sources say that this is actually John Lothar, but he is credited otherwise.