Suggestions by @moonmann

Caspar Phillipson

as Narrator in JFK

Score: +3

Rob Lowe

as Narrator in JFK

Score: +3

James Marsden

as Narrator in JFK

Score: +2

Greg Kinnear

as Narrator in JFK

Score: +3

Brett Stimely

as Narrator in JFK

Score: +2

Bruce Greenwood

as Narrator in JFK

Score: +3

Tim Matheson

as Narrator in JFK

Score: +2

Patrick Dempsey

as Narrator in JFK

Score: +2

Luke Manley

as Numa Bertel in JFK

Score: +2

Michael Chiklis

as Guy Bannister in JFK

Score: +3

Brendan Fraser

as X in JFK

Score: +3

James Remar

as Senator Long in JFK

Score: +1

Stavros Halkias

as Dean Andrews in JFK

Score: +2

Jason Schwartzman

as David Ferrie in JFK

Score: +2

Elijah Wood

as David Ferrie in JFK

Score: +2

Anthony Carrigan

as David Ferrie in JFK

Score: +2

Kate Mara

as Liz Garrison in JFK

Score: +1

Sara Paxton

as Susie Cox in JFK

Score: +1

Billy Bob Thornton

as Jack Martin in JFK

Score: +2

Jake Horowitz

as Bill Broussard in JFK

Score: +1