[5] Linville's motion-picture credits include The Goddess (1958), Scorpio (1973), Gable and Lombard (1976), A Star Is Born (1976), The Seduction (1982), and James Dean (2001).

In 1959, Linville appeared on the CBS daytime drama The Guiding Light as Amy Sinclair, a runaway drug addict whose daughter was nearly taken from her as part of an illegal adoption scam ring.

In 1968, she guest-starred as a Romulan commander in Star Trek[7] episode "The Enterprise Incident".This role earned Linville cult status, and remains her best-known performance.

She appeared in the made-for-TV movies House on Greenapple Road (and the resulting series Dan August) (1970), Secrets (1977), The Critical List (1978), The Users (1978), and The Right of the People (1986).

[8] Her daughter Amy Rydell reprised her mother's role as Romulan commander Charvanek on episodes 10 and 11 of fan production Star Trek Continues.