Sachi Parker Sachi Parker is the actress who played Malcorian Doctor Tava in the fourth season episode in . Parker filmed her scenes for " First Contact " between Friday and Tuesday on Paramount Stage 16 . Personal . Stephanie Sachiko MacLaine Parker was born in Los Angeles , California in 1956 as daughter of actress and producer Steve Parker . She is the niece of actor and producer and actress . Parker was raised by her father in Japan since 1958 , attended the Nishi Machi International School and the Gakushuin University in Tokyo and is fluent in Japanese . In 1959 she was photographed with her mother for the cover and an eight site pictorial for the February edition of the magazine Life . Author William P . Blatty , a friend of Shirley MacLaine , based the leading role Regan MacNeil in his 1971 novel " The Exorcist " on Parker and the part of Chris MacNeil on her mother . MacLaine was then forced to enroll her at a girls school in England . She also studied in Switzerland and worked in Hawaii and France . Parker was briefly engaged to a sheep - rancher in Australia and worked as a stewardess for Qantas Airlines . In 1981 she moved to her mother ' s house in Malibu . In 1993 she married investment banker Frank Murray . The couple has two children , son Frank Murray Jr . born in 1996 and daughter Arin . They divorced in 2011 . Television work . Parker made her acting debut in 1984 , playing Dorothy Jenks in the " Hotel " episode " Tomorrows " which featured " Trek " actors Michael Spound , Adrienne Barbeau , and Terrence E . McNally . The same year she had a supporting role in the television drama " His Mistress " with Jake Dengel and Randal Patrick . She appeared in an episode of " Scarecrow and Mrs . King " ( 1985 , with Gregory Itzin , Richard Lynch , and Patti Yasutake ) before she was cast as Tracy Harris in the final season of the soap " Capitol " ( 1986 - 1987 , with Constance Towers , Teri Hatcher , and Marj Dusay ) . Following a recurring role as Lucy in four episodes of the daytime soap " Santa Barbara " in 1987 ( with Michael Durrell and Scott Jaeck ) , Parker had guest parts in episodes of " Faerie Tale Theatre " ( 1987 , with Peter Weller and Ian Abercrombie ) , " Alien Nation " ( 1989 , with Gary Graham , Eric Pierpoint , Michele Scarabelli , Ron Fassler , Lori Petty , David Bowe , Wayne Pere , Noon Orsatti , and Bob Cummings ) , and " Equal Justice " ( 1990 ) . After she filmed her part for " Star Trek : The Next Generation " , Parker was also seen in the " Eerie , Indiana " episode " Reality Takes a Holiday " in 1992 , with Francis Guinan , Jason Marsden , and Leland Orser . In the early 1990s , Parker worked as anchor with Christopher Fields for Fuji TV ' s daily news program " Manhattan Express " , live from New York and aired in Japan . She introduced this in " Entertainment Tonight " , hosted by John Tesh . She previously worked as host on the Japanese program " The Entertainment Report " and filmed a television commercial for Diet Pepsi with her mother . Parker was interviewed in several news programs including " Good Morning America " and " ET " . Film work . Parker made her film debut in 1985 in ' crime drama " Stick " which featured " Trek " performers Castulo Guerra and Dave Cadiente . She also had a role in the science fiction film " Back to the Future " in 1985 ( with Christopher Lloyd , Ivy Bethune , and Jeff O ' Haco ) . Further films include the drama " About Last Night . . . " ( 1986 , with Rosana DeSoto , Ada Maris , and Dawn Arnemann ) , the comedy " Peggy Sue Got Married " ( 1986 , with Catherine Hicks , Don Stark , and Cynthia Brian ) , the drama " Riders to the Sea " ( 1987 ) , and the fantasy comedy " Scrooged " ( 1988 , with Alfre Woodard , John Glover , Michael J . Pollard , Roy Brocksmith , and Leslie Cook ) . She also appeared in the crime thriller " Vietnam , Texas " ( 1990 , with Bert Remsen , Steven Vincent Leigh , Jeff Cadiente , and Jeff Imada ) , the thriller " Bad Influence " ( 1990 , with Rosalyn Landor , John de Lancie , Lilyan Chauvin , and John Mahon ) , and the drama " Welcome Home , Roxy Carmichael " ( 1990 , with Winona Ryder , Rhonda Aldrich , Heidi Swedberg , Angela Paton , and Terrence Evans ) before she made her final appearance in the 1990s in the short comedy " The Walter Ego " ( 1991 , with Bert Remsen , Geoffrey Blake , Willie Garson , and Daniel Riordan ) . After a film break of twelve years , Parker appeared in a 2004 television commercial for . Her next role was in 2008 in the Japanese drama " The Witch of the West is Dead " . More recently she filmed the comedy " All Me , All the Time " ( 2009 ) and the Japanese drama " Toiretto " ( 2010 ) . Stage work . Parker performed the play " The Glass Menagerie " in the role of Laura and appeared as Nina in " The Seagull " at the Theatre Artists Workshop where she frequently performs . Other plays include " Moon Children " at the Edinburgh Festival , " Independence " at The Gnu Theatre ( 1991 ) , " Abraham Lincoln " at The Mark Taper Forum , and as mother in Edward Albee ' s " Three Tall Women " . More recently in 2011 she performed the one woman show " Lucky Me " . This play is autobiographically and co - written by Parker .