Simon Gagne first really appeared to me, a late-in-life Bruins fan, as a player of note in the 2010 playoffs. He returned from injury in game 4 of the Bruins-Flyers series, the same game of the series that started Krejci sitting due to Mike Richards' attempted murder of him in game 3. He was also the one who scored the 4 Flyers goal in game 7, completing their comeback.
For all of that, I'm sort of glad he's out of the league at this point. He can't hurt us again.