Mr. McReary was the father of Derrick, Gerald, Patrick, Francis, and Kate McReary, and husband of Maureen McReary. Much like most of the McReary family, Mr. McReary also has a criminal backstory. It can be assumed that he was arrested for murder in or before 1950 and became a fugitive in or before 1961, since his wife Maureen has convictions for Accessory to Murder and Harboring a Fugitive in those years and is stated in the LCPD database to have been a conspirator with him in the 1950s and 1960s.
According to Packie, he was an abusive father and an alcoholic. When Packie and Niko hang out, Packie may open up to Niko, and tell him that he and Gerald were molested by him. He calls his father a "sick pervert" and condemns his memory to "the seventh circle of Hell". Maureen also states that Mr. McReary is most likely in Hell, however, unlike her sons, she seems extremely upset over his death for some reason.
His forename is unknown, as it is never mentioned at all in GTA IV.
- Unlike most of the other characters from the game, he doesn't have an entry in the LCPD database. This is very strange since he was arrested for murder and even became a fugitive, not to mention that he also abused his family and even molested his sons.
- During the mission Harboring a Grudge, it is possible to see a portrait above Maureen McReary's fireplace that shows what Mr. McReary looked like.