The 26-year-old defender suffered a freak training ground injury to his knee last April when Paulo Sergio was Gorgie boss and by the time he recovered to come on as a substitute against Aberdeen last week, the Portuguese manager's successor, McGlynn, had been replaced by coach Gary Locke.
Ahead of the visit of Ross County on Saturday in the Clydesdale Bank Premier League, Hamill discussed the "strange" situation of his former Kilmarnock team-mate being his new boss.
"I missed out on John McGlynn, which was unfortunate, it is never easy to see someone lose their job," he said.
"I was training under him but couldn't play in any games.
"Obviously the new gaffer is in now but it is strange. I played with him at Kilmarnock so it is difficult but you just have to keep repeating it (gaffer) to try to get it to stick in your head.
"I am absolutely buzzing for him, though, he is a great guy and hopefully we can produce a result for him on Saturday and into next season because he has put in a lot of hard work over the years in getting his coaching badges.
"I haven't played against Ross County yet in the SPL so I am looking forward to it."