Person

Marcy Lafferty

Actor (Chief DiFalco) — The Motion Picture

American actress who played Chief DiFalco, the Enterprise crew member who takes over the navigation station after Ilia is abducted by V'Ger's probe, in Star Trek: The Motion Picture.

Marcy Lafferty is an American actress whose Star Trek role is Chief DiFalco in Star Trek: The Motion Picture (1979).
DiFalco is first glimpsed as part of the refitted Enterprise's crew and is summoned to the bridge when the V'Ger probe vaporises the Deltan navigator Ilia. She replaces Ilia at the navigation console for the rest of the voyage into the cloud and is at her post when the ship reaches V'Ger's central chamber.
Lafferty also appeared in guest roles on television during the 1970s and 1980s, including episodes of T.J. Hooker, and on stage in Los Angeles.