Judd Seymore Hirsch (born March 15, 1935) is an American actor. He is known for playing Alex Rieger on the television comedy series Taxi (1978β1983), John Lacey on the NBC series Dear John (1988β1992), and Alan Eppes on the CBS series Numb3rs (2005β2010). He is also well known for his career in theatre and for his roles in films such as Ordinary People (1980), Running on Empty (1988), Independence Day (1996), A Beautiful Mind (2001), Independence Day: Resurgence (2016), Uncut Gems (2019), and Th...