Biography
Oliver John MacGreevy (25 July 1928 – October 1981) was an Irish actor who appeared in many British films and television series from the mid 1950s until he retired in 1980, often as brutish, shaven-headed villains.
Among his roles he played Housemartin in The Ipcress File (1965) and made an appearance as both the Gardener and the Electrician in the first episode of The Prisoner TV series ("Arrival", 1967). He also appeared in an episode of Thriller (1975).
On stage, he appeared in Tom Murphy's A Whistle in the Dark at Joan Littlewood's Theatre Royal, Stratford East, in London, 1961.
Filmography
Cast Credits

Flash Gordon
Character: Klytus Observer No. 1
MOVIE • 1980

No. 1 of the Secret Service
Character: Simms
MOVIE • 1977

Where the Action Is
Character: Henry
MOVIE • 1975

The Four Musketeers
Character: Headsman (uncredited)
MOVIE • 1974

Thriller
Character: Henry
TV • 1973

The Ruling Class
Character: Inmate
MOVIE • 1972
Thrills Galore
Character: Landlord
MOVIE • 1972

Tales from the Crypt
Character: Maniac
MOVIE • 1972

Jason King
Character:
TV • 1971

When Eight Bells Toll
Character: Quinn
MOVIE • 1971

Department S
Character: Karnack
TV • 1969

The Nine Ages of Nakedness
Character: Hargreaves (segment "The Old Dark House")
MOVIE • 1969

Great Catherine
Character: General Pskov
MOVIE • 1968

Salt & Pepper
Character: Rack
MOVIE • 1968

The Prisoner
Character: Gardener / Electrician
TV • 1967

The Whisperers
Character: 2nd Redeemer
MOVIE • 1967

The Christmas Tree
Character:
MOVIE • 1966

The Frozen Dead
Character: Joseph the Butler
MOVIE • 1966

Kiss the Girls and Make Them Die
Character: Ringo
MOVIE • 1966

Modesty Blaise
Character: Tattooed Man
MOVIE • 1966