Namesakes
Fictional Characters from Books:
1 character, 1 hero
Dick Grayson 1940 Batman 
Will Grayson 2010 Will Grayson, Will Grayson
Fictional Characters from Television:
2 characters
Alice Horton (a.k.a. Grayson) 1965 Days of Our Lives
Ned Grayson 1994 Party of Five
Notable Actors and Entertainers:
1 actor
Gail Davis (a.k.a. Grayson) 1925-1997