American actor who played Admiral Gregory Quinn in the first-season Next Generation episodes Coming of Age and Conspiracy, first investigating Picard and then falling victim to the parasites.
Ward Costello (1919 to 2009) was an American character actor, and also a composer and lyricist, who played Admiral Gregory Quinn in The Next Generation.
In Coming of Age Quinn brings the investigator Dexter Remmick aboard the Enterprise-D to examine Picard's command, then reveals that he fears something is wrong within Starfleet and offers Picard the post of commandant of the Academy. Costello returned in Conspiracy, where Quinn has been taken over by a neural parasite and displays unnatural strength in a fight with Riker.
His film work included MacArthur and Missing, along with many television guest roles from the 1950s onward.