(written from a Production point of view)
Marilyn Fox is the actress who played Marna in the Star Trek: Voyager fourth season episode "Nemesis". She filmed her scenes on Thursday 19 June 1997, Monday 23 June 1997, and Tuesday 24 June 1997 on Paramount Stage 16 and on location at the Warner Bros. backlot.
Fox made her screen acting debut in the 1960s, playing a patient in the The Many Loves of Dobie Gillis episode "A Funny Thing Happened to Me on the Way to a Funny Thing" (1962). She had supporting roles in the western comedy The Outlaws Is Coming (1965, with Nancy Kovack and Rex Holman), the television drama The Girls of Huntington House (1973, with William Windom), the television drama Flight to Holocaust (1977), the music comedy I Wanna Hold Your Hand (1978, with Dick Miller and Leslie Hoffman), the musical romance Grease (1978), and the comedy The Last Married Couple in America (1980, with Stewart Moss and Teda Bracci), as well as in an episode of Green Acres (1970).
After a break from television and film, she appeared in the 1990s on screen in the television series Down the Shore (1993), Picket Fences, Cheers, Civil Wars, Animated Hero Classics (1995), and Partners (1995, with Jeff Coopwood). More recent projects include episodes of Family Law and Judging Amy (1999 and 2001, with Lawrence Pressman, Karen Hensel, Sara Mornell, and Karl Wiedergott), the short drama Lives of the Pharaohs (2001), and the short drama The Heir Apparent (2005).
Beside acting, Fox has also worked as acting coach for actors such as Star Trek: Deep Space Nine featured actress Lisa Pettett since 1983. Between April and May 2002, she appeared alongside Gene Dynarski in Clifford Odet's play Awake and Sing! at the Public Theater in Pittsburgh, Pennsylvania.
Fox has been a member of the Pacific Resident Theatre in Los Angeles, California since 1985 and more recently the artistic director since 1995.  Over the years, she won the Golden Boy and Playboy of the Western World Award and directing awards for Ondine in 1993 and The Browning Version in 2010. In 2004, she received the LA Weekly Career Achievement Award. Fox continues to work as director and also appeared in several plays.