Who do you think would be a great African American Green Lantern?

Suppose they were to make a film with the John Stewart version of Green Lantern, who do you think would be perfect for the role? :) I was thinking Denzel Washington but he may be too old(but I love him though!). I was also thinking Will Smith but maybe someone 5 or 10 years younger. I can't think of one. WE NEED MORE DENZELS AND WILL SMITHS FOR OUR FUTURE FILMS!! :)