Zienia Merton (11 December 1945 – 14 September 2018)^[1][2][3][4] was a British actress born in Burma. She was known for playing Sandra Benes in Space: 1999.^[5][6][7]

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Merton was the daughter of Minny and Cecil Burton. Her mother was Burmese, and her father was a half-English, half-French merchant. She was raised in Singapore, Portugal and England. She was educated at first in Portugal, but was later sent to Arts Educational school (today the Tring Park School for the Performing Arts) in Hertfordshire.^[5] Her first stage performance was as a dancer (playing a rat) in a Christmas 1957 production of The Nutcracker ballet at the Royal Festival Hall.^[5]

Merton's first significant science-fiction credit was as Ping-Cho in the 1964 Doctor Who story Marco Polo,^[8] long since lost in its original form. Her other early television appearances included Strange Report (1968), The Six Wives of Henry VIII (1970) and Jason King (1971). She was a lead actress as Christina in the 1971 Dennis Potter TV adaptation of Casanova with Frank Finlay,^[8] and appeared on The Benny Hill Show in 1972, playing the wife of Hill's Chow Mein character. Her film roles included a brief appearance as an Asian high priestess in the Beatles' film Help! (1965), as Ting Ling in the film The Chairman (1969) with Gregory Peck, and The Adventurers (1970).

Probably her most notable role is that of Sandra Benes in Space: 1999, the science fiction series produced by Gerry Anderson and Sylvia Anderson between 1973 and 1976, with Martin Landau, Barbara Bain, Barry Morse and Catherine Schell. In 1999, Merton reprised this role in the short film Message from Moonbase Alpha, written by series writer Johnny Byrne. Its debut was at the closing ceremony of the Breakaway 1999 convention^[9] in Los Angeles, California, US on 13 September 1999; the date on which the moon is blasted out of Earth orbit in the pilot episode of the original series.

Following Space: 1999, Merton appeared in many popular television series including Grange Hill,^[2] Return of the Saint (1979),^[2] Bergerac (1983),^[2] Angels (1983),^[2] Tenko (1984),^[2] Dempsey & Makepeace (1985),^[2] Lovejoy (1986),^[2] Crime Traveller (1997), Doctors (2001),^[2] Dinotopia (2002), Casualty (1986–2002),^[2] EastEnders (1998–2003),^[2] The Bill (1999–2005),^[2] Judge John Deed (2006), Coronation Street (2008)^[2] and Wire in the Blood (2008).

In December 2008, Merton filmed a guest role for the eighth episode ("Samaritan") of the ITV drama Law & Order: UK. Although the series premiered on 23 February 2009, some episodes were held over for broadcast as "Series Two". "Samaritan" was first transmitted on ITV1 on 11 January 2010.

In May 2009, Merton returned to the world of Doctor Who, 45 years after her appearance in Marco Polo, to record a special episode of The Sarah Jane Adventures in the two-part episode The Wedding of Sarah Jane Smith, broadcast on BBC One on 29 and 30 October 2009.

In 2018, Merton narrated BBC Audio's release of the novelisation of Marco Polo. This turned out to be her final professional engagement.

Merton was diagnosed with terminal cancer in 2017, and died 14 September 2018.^[5]

Zienia Merton; Robert E. Wood (2005). Anecdotes & Armadillos. self-published. ISBN 1411634845.