In one scene of the AMC television drama, Hamlin's character, Jim Cutler, says to Draper, "You're just a bully and a drunk."
"Aw, man! I got so much hate mail for that," Hamlin told the Today show. "People love Don Draper. ... I told the truth -- the guy is a drunk and a bully -- but people do not like that."
"Some people don't get that, but that's OK," he said.
Notable deaths of 2014 [PHOTOS]