Agent Carr
-He had brown eyes (Schaffner saw his eyes before he put on the glasses, he looked directly at her several times urging her to read the note)
-He is 5'10 to 6'1 (Mucklow is 5'8 and spent 5 hours with Cooper, she would know if he was her height or taller. Have someone 5'8 stand next to someone 6 feet, the difference is obvious. Better yet, position yourself at a level of 5'8 and look at someone at a 6' elevation. Now spend 5 hours with that person, you'll know the difference. No one put Cooper under 5'10.
-He had olive skin (no make-up, neither Mucklow, Schaffner or Hancock made comment on make-up which would have been very obvious. Again, do the math, put dark makeup on someone then sit next to them with your shoulders touching, you can see the make-up.)
-He had dark hair, receding with sideburns (no wig, this would have been painfully obvious, if a man was wearing a wig with a receding hair line and side burns everyone would have noticed, especially Mucklow and Schaffner.)