Mike Gracia

U.S. President Dwight D. Eisenhower suffered a mild stroke while in the Oval
Office during his second term which disabled his ability to speak for about 24 
hours. The following year Eisenhower wrote a letter of authority giving Vice 
President Richard Nixon the right to assume power in the event the President
became incapacitated.
 

Valerie Kathryn Harper

Harper played Rhoda Morgenstern on the CBS sitcom The Mary Tyler Moore
Show (1970-1977) and on the spin-off series Rhoda (1974-1978). She earned
four Emmy Awards for her role as Rhoda across the two series. Her career in
roles began as a dancer and chorus girl in various Broadway productions
and made her big screen debut in the 1956 feature Rock Rock Rock!
  
On March 6, 2013, Harper announced that tests from a hospital stay revealed
she has a rare condition in which cancer cells spread into the meninges, the
membranes surrounding the brain. Last year Harper said she was responding
well to chemotherapy treatment.

Kevin Tighe (born Jon Kevin Fishburn in Los Angeles, California)

Tighe is best known for his character, firefighter-paramedic Roy DeSoto,
on the 1972-1977 NBC series Emergency!. He earned a Masters of Fine
Arts degree from the University of Southern California in 1967 and made
his first film appearance that same year as an extra in The Graduate.

Sandy Kozel