Sorry, but that's not exactly true. Liam Neeson portrayed the Irish freedom fighter Michael Collins in the 1996 Movie of the same name. Collins was shot by a republican Sniper during the Irish Civil War in 1922. I'm not exactly an expert on Liam Neeson movies altogether, so I might miss further examples, but I know this one. But any meme with Darth Maul on it is great (Ray Park did a tremendous job playing this badass duelist).

... except for the poor republican trooper bastards at the beginning of EpIV, some Jawas and supposedly Beru and Owen Lars. But yeah, the fear of these suckers wears off as soon as guys get to swing a lightsaber :)

That assertion on the bottom of the meme sounds cool, but actually that's not true ;) Liam Neeson was killed in at least one movie I watched ("Michael Collins", Neeson played M.Collins who was shot by a republican rifleman in an ambush during the Irish Civil War in 1922). Still a funny meme though. And sorry for the necro ^^