David GrafActor David Graf, forever known as Sergeant Tackleberry in the Police Academy series of films, dies of a heart attack at the age of 50. Graf made a number of guest appearances on TV series near and dear to SF fans, perhaps most notably in the role of aviator Fred Noonan in the original season finale of Star Trek: Voyager’s first season, The 37s (which was later relocated to the show’s second season by UPN). Mr. Graf also guest starred on Star Trek: Deep Space Nine, Quantum Leap, Lois & Clark and Beauty And The Beast, as well as appearing alongside ex-DS9er Terry Farrell in some recent episodes of Becker, a recurring role in The West Wing, and providing character voices for the Star Trek: Voyager Elite Force video game.