Denise Crosby (b. November 24, 1957) portrayed Doctor Rebecca Frost in the The Flash episode "The Deadly Nightshade" and Doctor Gretchen Kelly on the series Lois & Clark: The New Adventures of Superman.
|The Flash||1990-1991||Rebecca Frost|
|"Deadly Nightshade"||March 30, 1991||Doctor Rebecca Frost|
|Lois & Clark: The New Adventures of Superman||1993-1997||Gretchen Kelly|
|"Madame Ex"||September 18, 1994||Doctor Gretchen Kelly|
|"A Bolt from the Blue"||November 20, 1994||Doctor Gretchen Kelly|
|"The Phoenix"||February 12, 1995||Doctor Gretchen Kelly|
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