Character actors who are meant to portray them

[Altair]

Occasionally, an actor is a wonderful fit for the role, and you can't imagine anyone else playing them! In your thoughts, who is this?

 

[MrDawn]

No one can play a T-800 like Arnold Schwarzenegger can.

 

[Heatman]

Little Finger in Game of Thrones was the perfect character for the roles he played in the TV show. The man played his roles so well that I'm afraid of him in real life.