(written from a Production point of view)
Susan Linda Bay (born 16 March 1943; age 76) played the role of Admiral Rollman in the Star Trek: Deep Space Nine first and second season episodes "Past Prologue" and "Whispers". She is the cousin of director/producer Michael Bay.
Bay and Leonard Nimoy were married on New Year's Day 1989, making her Adam Nimoy's stepmother, and had their honeymoon in Europe and Lake Tahoe. She often worked with her husband in his photography.  Bay had previously been married to Trek guest actor John Schuck from 1978 through 1983.
Bay confirmed Nimoy's death on 27 February 2015.  In lieu of her husband, she was asked by Bad Robot Productions to nominate a charity to benefit from their "To Boldly Go" fundraising campaign. She chose St. Jude Children's Research Hospital. 
Bay has also guest starred in The Many Loves of Dobie Gillis (with Sally Kellerman), Ben Casey (with John Anderson), The Big Mouth (with George Takei), Mannix (with Nehemiah Persoff), Remington Steele (with Larry Cedar) and Civil Wars (with Louise Fletcher, Ray Buktenica, Kenneth Mars, and Lawrence Dobkin).