
Jeremy Spenser (born Jeremy John Dornhurst de Saram, 16 July 1937) is a British actor who made his screen debut aged 11 in Anna Karenina (1948).
The following year he played in the black comedy Kind Hearts and Coronets as the young Louis Mazzini. He played the young King Nicolas in The Prince and the Showgirl with Laurence Olivier and Marilyn Monroe, and in Ferry to Hong Kong with Orson Welles.
In the 1960s, the role offers began to slow down. His last film role was in 1966's Fahrenheit 451 directed by François Truffaut. A little later Spenser retired from acting.
He is the brother of British actor, director, producer and writer David Spenser.
[biography from Wikipedia]

Fahrenheit 451
1966 · as Man with the Apple

The Prince and the Showgirl
1957 · as King Nicolas

Operation Crossbow
1965 · as SS Officer at Rocket Plant

Kind Hearts and Coronets
1949 · as Young Louis (uncredited)

Anna Karenina
1948 · as Giuseppe

The Roman Spring of Mrs. Stone
1961 · as Young Man

King and Country
1964 · as Pvt. Sparrow

Summertime
1955 · as Vito de Rossi

Prelude to Fame
1950 · as Guido Ferugia

The Brain
1962 · as Martin Holt

Escapade
1955 · as L. W. Daventry

Ferry to Hong Kong
1959 · as Miguel Henriques

Appointment with Venus
1951 · as Georges

The Spider and the Fly
1949 · as Jacques

It's Great to be Young!
1956 · as Nicky, The Angel Hill Kids

The Dancing Years
1950 · as Maria's Son

He Who Rides a Tiger
1965 · as The Panda

The Siege of Manchester
1965 · as Captain Standish