Appeared in the 1967 "Gunsmoke" (1955) episode "Gunsmoke: Fandango (#12.21)" (1967). A portion of this episode can be heard on the album "The Wall" by Pink Floyd, during the intro to the song "Is There Anybody Out There".
Graduate of Sweet Briar College (1960).
In celebration of the "Star Trek" (1966) 40th Aniversary, several conventions were held in its honor. Diana hadn't done a Star Trek convention in 10 years. She participated in one in Las Vegas on Sept. 15, 2006, along with several other Star Trek veterans.
Often plays physician roles. Her most noted ones in Trek lore were, respectively: "Dr. Ann Mullhall" (original series episode: "Star Trek: Return to Tomorrow (#2.20)" (1968)), "Dr. Miranda Jones" (original series episode: "Star Trek: Is There in Truth No Beauty? (#3.5)" (1968)) and "Dr. Katherine Pulaski" (season two of "Star Trek: The Next Generation" (1987)). Each having an open-minded view of the Universe.
The scene where her "L.A. Law" (1986) character Rosalind Shays is discovered in bed with her enemy Leland McKenzie, played by Richard Dysart, was ranked as the 38th greatest moment in television (the list originally appeared in the March 1991 issue of EGG magazine).
Worked together with "L.A. Law" (1986) co-star Richard Dysart at New York's legendary "Circle in the Square Theatre" in the 1960s.
Said in an interview in People Magazine in 2000, that the "L.A. Law" (1986) actors were like family to her, but that she didn't have fond memories of the cast of "Star Trek: The Next Generation" (1987).
According to director Paul Lynch, Diana had trouble remembering her lines on "Star Trek: The Next Generation" (1987). To help her out, her lines were put on cue cards for her to look at. (Star Trek magazine, Sept/Oct 2007).
Playmates Toys released an action figure in her likeness as the character "Dr. Pulaski" from "Star Trek: The Next Generation" (1987).
Was the graduation speaker for Sweet Briar College (her alma mater) on 7 May 2000.