Alpha Child
Space 1999 Episode A-07
Production Info
Director Ray Austin
Story by
Screenplay by Christopher Penfold,[1] Edward di Lorenzo
Editor Derek Hyde Chambers
Production Code #10
Previous Episode Produced Force of Life
Next Episode Produced The Last Sunset
Transmission Info
Season 1
Episode 7
Airdate November 28 1975[2]
Previous Episode Voyager’s Return
Next Episode Dragon's Domain


"I saw him smile. It sent a shiver up my spine. So knowing - almost as if he were mocking his mother's death."


The first child born on the Moon inexplicably grows to the size of a five year old within a matter of hours and Koenig believes that the child's unnatural development is linked to the death of his father, a technician in the nuclear generating plant. Then four spaceships appear over Alpha, menacing the base and resisting all attempts to repel them. Jackie suddenly grows into a mature adult, revealing himself to be Jarak, one of 120 alien travellers who seek physical forms in which to conceal their identities and escape the rigorously imposed genetic conformity of their home planet. He and his companions intend to inhabit the Alphans' bodies, which they can only do at the moments of birth and death...

Filming ScheduleEdit

  • Monday, July 8th - Monday, July 22nd, 1974

Original UK AirdateEdit

  • Thursday, October 16th, 1975 (ATV Midlands)


Internet Movie DatabaseEdit

No errors listed


  • The original script of this episode was written by Edward di Lorenzo but re-written by Christopher Penfold who receives sole credit.
  • Some of the incidental music in this episode was originally composed and recorded in 1969 for the The Secret Service episode Last Train To Bufflers Halt.
  • Prentis Hancock has a nasty bruise under the nail of his forefinger which is still visible in The Last Sunset.
  • Barry Morse took some time off during filming of this episode and appears in only a couple of short scenes.

Guest ArtistsEdit

  • Julian Glover is primarily known for his many villainous roles, perhaps the best-known of which are his portrayals of Colonel Breen in Quatermass And The Pit (1967), General Veers in The Empire Strikes Back (1980), Aris Kristatos in For Your Eyes Only (1981) and Walter Donovan in Indiana Jones And The Last Crusade (1989). He made his feature film debut in Tom Jones (1963) and went on to appear in Theatre Of Death (1967), The Magus (1968), Alfred The Great (1969), Wuthering Heights (1970), Nicholas And Alexandra (1971), Juggernaut (1974), The Internecine Project (1974), Heat And Dust (1982), Cry Freedom (1987), The Fourth Protocol (1987) and King Ralph (1991). In the 1960s and 70s, Glover carved a niche for himself in television with numerous guest roles in series such as The Avengers (four times), Doctor Who (twice), The Saint, The Champions, Callan, Jason King, The Sweeney and Blakes 7. He has also guested in Magnum p.i., Remington Steele, Bergerac and Midsomer Murders, while his regular television roles have included Colonel James Cadogan in Wish Me Luck, Lord Revelstroke in Nancy Astor, Andrew Blake in The Chief, Dr. Stefan Kilkiss in the short-lived Q.E.D. and the starring role as Sir Martin Lacey in By The Sword Divided. He is married to actress Isla Blair, seen in War Games and Journey To Where.
  • Cyd Hayman is best-known for her leading role as Nina in the 1970 LWT wartime drama Manhunt. She later made a guest appearance in the Anyone Can Play episode of ITC's The Persuaders! before starring as Adele Torbayan in Clochemerle, and making regular appearances on The Two Ronnies. Her feature films include Percy (1971), The Human Factor (1980), The Godsend (1980) and Mask Of Murder (1985). She appeared in the A Man With A Fortune episode of Tales Of The Unexpected and as the glamourous neighbour Mrs. Kelly in the BBC2 comedy Lame Ducks. She was most recently seen as Mrs. Miller in the thriller serial Killer Net.
  • Rula Lenska had appeared extensively in television with roles in Dixon Of Dock Green, The Saint, The Doctors, The Brothers, Edward The Seventh and Special Branch before being shot to fame as Nancy 'Q' Cunard de Longchamps in Rock Follies. She has since appeared as Mrs Warner in Take A Letter, Mr. Jones, Eva in Family Pride, Isabel in Stay Lucky and Mrs. Peacock in Cluedo, as well as making guest appearances in Minder, Private Schultz, To The Manor Born, Robin Of Sherwood, Boon, Kappatoo and Doctor Who. She also appeared in the films Soft Beds, Hard Battles (1973), Alfie Darling (1975), Royal Flash (1975) and The Deadly Females (1976). Oddly, she is uncredited for her role in this episode.

Regular CastEdit

Koenig, Helena, Bergman, Morrow, Carter, Sandra, Kano, Mathias, Tanya

Additional CastEdit

  • Jarak - Julian Glover
  • Sue Crawford/Rena - Cyd Hayman
  • Jackie Crawford - Wayne Brooks
  • Joan Conway - Rula Lenska
  • Ken Johnson - James Fagan
  • Main Mission Operatives - Loftus Burton, Sarah Bullen, Andrew Dempsey, Raymond Harris, Michael Stevens, Maureen Tan
  • Security Guards - Tony Allyn, Quentin Pierre
  • Medic - Vincent Wong


  1. Has sole writing credit
  2. tt0706313
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