Is the actor that plays striker in xmen 2 the same actor that plays mel gibson's uncle in Brave

yes, Brian Cox he is a great actor the original Dr.Lecter (Manhunter)

Is the actor that plays striker in xmen 2 the same actor that plays mel gibson's uncle in Braveheart?lyric opera

Yes.

Is the actor that plays striker in xmen 2 the same actor that plays mel gibson's uncle in Braveheart?imax theater opera theater

yes it is. his name is brian cox and he also played in super troopers. that is one movie you will have to see. he also plays in troy has the greedy agramemnon(sorry for spelling if it is wrong). he is a great actor. oh i almost forgot he played the crazy father of samara from the ring. he kills himself by electricution in the bathtub.