Namesakes
Fictional Characters from Television:
3 characters
Rex Brady 1965 Days of Our Lives 
Rex Weller 1999 Family Law
Rex Van de Kamp 2004 Desperate Housewives
Notable Actors and Entertainers:
3 actors
Rex Harrison 1908-1990
Rex Linn 1956-
Simon Rex (a.k.a. Rex) 1974-
Notable Musicians:
1 singer
Rex Gildo 1936-1999
Olympic Medalists:
1 gold
(gold) Rex Cawley 1964 400 m hurdles
Oscar Award Winners:
1 actor
(actor) Rex Harrison 1965 My Fair Lady