Question:  Conquest is a 1937 Metro-Goldwyn-Mayer film staring a British character actor for his many roles in British and American films and later in what?

Context paragraphs:
Vito Scotti: Vito Giusto Scotti (January 26, 1918 – June 5, 1996) was a prominent American character actor of Italian descent, who played many roles, primarily from the late 1930s to the mid-1990s on Broadway, films and later television.  He was known as a man of a thousand faces, for his ability to assume so many divergent roles in more than 200 screen appearances, in a career spanning 50 years.  He was known for his resourceful portrayals of various ethnic types.  Born of Italian heritage, he was seen playing everything from a Mexican bandit, to a Russian doctor, to a Japanese sailor, to an Indian travel agent.

Terence Morgan: Terence Ivor Grant Morgan (8 December 1921 – 25 August 2005) was an English actor in theatre, cinema and television.  He was the nephew of British character actor Verne Morgan.  He played many "villain" roles in British film but is probably best remembered for his starring role in the TV historical adventure series "Sir Francis Drake".

Conquest (1937 film): Conquest (also called Marie Walewska) is a 1937 Metro-Goldwyn-Mayer film which tells the story of the Polish Countess Marie Walewska, who becomes the mistress of Napoleon in order to influence his actions towards her homeland.  It stars Greta Garbo, Charles Boyer, Reginald Owen, Alan Marshal, Henry Stephenson, Leif Erickson, Dame May Whitty, George Zucco, and Maria Ouspenskaya.

Reginald Owen: John Reginald Owen (5 August 1887 – 5 November 1972) was a British character actor.  He was known for his many roles in British and American films and later in television programmes.

Campbell Singer: Campbell Singer (16 March 1909 - March 1976) was a British character actor who featured in a number of film and television roles during his long career.

Andy Hardy: Andrew "Andy" Hardy is a fictional character played by Mickey Rooney in a Metro-Goldwyn-Mayer film series from 1937 to 1946, with a film released in 1958 in an unsuccessful attempt to revive the series.  Hardy and others were based on characters in the play "Skidding" by Aurania Rouverol.  Early films in the series focused on the entire Hardy family, but later films in the series focused on the character of Andy Hardy.  All of the films were sentimental comedies celebrating ordinary American life.

Norman Wooland: Norman Wooland (16 March 19103 April 1989) was a British character actor who appeared in many major films, including several Shakespearean adaptations who was born in Düsseldorf, Germany to British parents.

Nigel Bruce: William Nigel Ernle Bruce (4 February 1895 – 8 October 1953) was a British character actor on stage and screen.  He was best known for his portrayal of Dr. Watson in a series of films and in the radio series "The New Adventures of Sherlock Holmes" (starring Basil Rathbone as Sherlock Holmes).  Bruce is also remembered for his roles in the Alfred Hitchcock films "Rebecca" and "Suspicion".

Peter Arne: Peter Arne (born Peter Randolph Michael Albrecht, 29 September 19181 August 1983) was a British character actor best known for various performances in British film and television.  He made more than 50 film appearances including roles in "Ice Cold in Alex", "The Moonraker" and "Conspiracy of Hearts".  He made numerous appearances on television and stage.  He had supporting roles in the television series "The Avengers", "Danger Man", as well as villains in Blake Edwards' Pink Panther series, in a career that spanned 40 years.

Peter Vaughan: Peter Vaughan (born Peter Ewart Ohm; 4 April 1923 – 6 December 2016) was a British character actor, known for many supporting roles in British film and television productions.  He also worked extensively on the stage.

Supporting paragraphs: Conquest (1937 film) Reginald Owen
Answer: television programmes