Suggestions by @hellfirecasts

Marc Webb

as Director in The Flash

Score: +1

Jessica Alba

as Lisa Snart in The Flash

Score: +1

Wes Bentley

as Samuel Scudder in The Flash

Score: +1

Joseph Quinn

as Wally West in The Flash

Score: +1

James Marsden

as Henry Allen in The Flash

Score: +1

Bruce Campbell

as Jay Garrick in The Flash

Score: +1

Peter Weller

as Darryl Frye in The Flash

Score: +1

Khary Payton

as Silas Stone in The Flash

Score: +1

Billy Magnussen

as Eobard Thawne in The Flash

Score: +1

Jessie T. Usher

as Victor Stone in The Flash

Score: +1

Andrew Lincoln

as Leonard Snart in The Flash

Score: +1

Lily Collins

as Iris West in The Flash

Score: +1

Dave Franco

as Barry Allen in The Flash

Score: +1

Marisa Tomei

as Jessica Jordan in Green Lantern Corps

Score: +1

Haley Joel Osment

as Jack Jordan in Green Lantern Corps

Score: +1

Stanley Simons

as James Jordan in Green Lantern Corps

Score: +1

Nathan Fillion

as Martin Jordan in Green Lantern Corps

Score: +1

Matthew Modine

as Carl Ferris in Green Lantern Corps

Score: +1

Alex Garland

as Showrunner in Green Lantern Corps

Score: +1

Tara Strong

as Sayd in Green Lantern Corps

Score: +1