Perhaps, but Cushing is dead and Abraham is always up for playing a sociopath.
So is Calvin. :)
I haven't seen much Abraham - the thing with Cushing is that he can stare down the scene with piercing eyes, showing no emotion, and at the same time taking every slight, every insult, every happening personally. You know that he is just seething inside and will personally repay all and everyone.
Can Abraham play facially emotionless, yet enraged and bitter psychos? I thought of Lee Van Cleef, but he smiled too much for this role.