unfeeling person

Ev begins to see himself for the selfish, thoughtless, uncaring and unfeeling person he has become.

He was not the cold, insensitive, unfeeling person that Carl portrayed in that film.”

Hal says I am the most unfeeling person he 9 knows.

Better be considered an unfeeling person than to have the disease thought forced upon you.

Then there is the coming down to breakfast with a teeny, weeny twist in one's temper that makes some unfeeling person say: "I guess you got out of the wrong side of the bed this morning."