[1] Bill Gunn, who wrote the screenplay of The Landlord,[5] then cast her in his unreleased film, Stop (1970).

[1][4] Clark collaborated with Gunn again when he cast her and Duane Jones in the 1973 horror film Ganja & Hess.

[1][4] A.H. Weiler of The New York Times wrote in his review of the film, "Miss Clark is an arresting presence as the enamored Ganja.

"[8] That same year, Clark also appeared in the Bruce Lee film Enter the Dragon (1973), in which she portrayed a secretary.

[1][10] The same year, she appeared opposite Calvin Lockhart, Michael Gambon and Peter Cushing in The Beast Must Die (1974).