Three-letter actor Stephen is most often "Rae." Check if the "K" is right.
The actor and presenter you are referring to is "Matthew Fox." He has a first name with 7 letters and a surname with 3 letters.
The Godfather???
Red? -.-
lye
no. no.
ria
Exe
pap
Reo
S.O.S by ABBA or Rihanna
cue
One living thing with 3 letters starting with e is an eel.