Namesakes
Regan
(f) 
Fictional Characters from Plays and Musicals c. 1605 King Lear
Shakespearian Characters King Lear
Regan MacNeil
(f)
Fictional Characters from Movies 1973 The Exorcist
Regan Harrison
(m) 1977-
Olympic Medalists 2000 swimming - 4x100 m medley relay (silver)
Regan McLeod
(f)
Fictional Characters from Television 2001 McLeod's Daughters