Suggestions by @jackamos2019

Jimmy Jean-Louis

as The Captain in Arrow

Score: +1

Michael Jai White

as Ben Turner in Arrow

Score: +2

Grant Gustin

as Barry Allen in Arrow

Score: +1

Danielle Panabaker

as Caitlin Snow in Arrow

Score: +2

Carlos Valdes

as Cisco Ramon in Arrow

Score: +1

Michael Eklund

as Barton Manthis in Arrow

Score: +1

Robert Knepper

as William Tockman in Arrow

Score: +1

James Kidnie

as Milo Armitage in Arrow

Score: +1

Katrina Law

as Nyssa Al Ghul in Arrow

Score: +1

Graham Shiels

as Cyrus Gold in Arrow

Score: +1

Navid Negahban

as Al- Owal in Arrow

Score: +1

Sean Maher

as Mark Scheffer in Arrow

Score: +1

J. August Richards

as Mr Blank in Arrow

Score: +1

Audrey Marie Anderson

as Lyla Michaels in Arrow

Score: +2

Ona Grauer

as Vivian in Arrow

Score: +1

Danny Nucci

as Raynes in Arrow

Score: +1

James Callis

as Winnick Norton in Arrow

Score: +1

John Cassini

as Russo in Arrow

Score: +1

David Anders

as Cyrus Vanch in Arrow

Score: +2

Sarah-Jane Redmond

as Mrs Reston in Arrow

Score: +1