Marcus was a student of
Lee Strasberg's. She appeared in numerous television shows throughout the 1950s and '60s. She was sometimes billed as Dolores Vitina, as in the 1958 film
Never Love a Stranger, starring
John Drew Barrymore and
Steve McQueen. She was in
Irwin Allen's 1960 production of
The Lost World, as well as
Taras Bulba (1962) with
Tony Curtis and
Yul Brynner. On television, she appeared in
Voyage to the Bottom of the Sea, including the first-season episode "Turn Back the Clock" (in which producer
Irwin Allen reused some of her footage from
The Lost World) and the second-season episode "Return of the Phantom". She appeared in two episodes of
Lost in Space as the Green Lady (Athena), an admirer of stowaway Dr. Zachary Smith's, who endangers the
Jupiter II;
Have Gun – Will Travel as Della White Cloud, an
Apache princess; and in episodes 24 and 26 of
The Time Tunnel, "Chase through Time" and "Attack of the Barbarians". Marcus was in an episode of
The Man from U.N.C.L.E., "My Friend: The Gorilla Affair", in 1966. She guest-starred in the TV series
Gunsmoke's episodes "The Squaw" as Natacea (1961) and "Old Comrade" as Missy (1962). In 1962, she portrayed Wahkshum in the episode "The Peddler" on CBS'
Rawhide. ==Personal life==