Darryl F. Zanuck, b. 1902 d. 1979 (Alzheimer's disease)
Studio Mogul - Twentieth Century Fox

Frank Zappa b. 1940 d. 1993 (prostate cancer)
Musician/composer - The Mothers of Invention

Michael Zaslow b. 1942 d. 1998 (ALS - Lou Gehrig's Disease)
Actor - Roger Thorpe on Guiding Light

Ron Ziegler - b. 1939 d. February 10, 2003 (heart attack)
Press secretary to President RIchard Nixon

Elmo Zumwalt b. 1921 d. January 2, 2000
Progressive U.S. Navy Admiral who worked to end discrimination