imho ~
it's Mr "BiG Six" Him Ownself!
His face is considerably shaded, why he looks chubby.
He is wearing what Mr Mathewson(Uniform) would of worn
& No one else actually looks like him, cept maybe Mr Marquad
& that ain't him!
Mr Mathewson's ears match, as far i can see ~
Who else could he be?
it's Mr Mathewson alright!!!
jmho !