User blog comment:Gourgeist/Who Is The Beast Titan?/@comment-218.186.149.76-20150815011246

Alright I know who the beast titan is!

the beast titan is Mr Smith, Erwin Smith's father. i believe it is him, appearance wise, look at this hair, beard and especially the glasses. both the current titan and the flashbalck from erwin past is the same even the hair sheap of the body and eyes. he was a highly intelligent man who knows and theorize out the walls.

we know that we was captured and tortured by the corps and later assume* he died. he i think he didnt die but escape outside the walls. i want you to compare both of them in the 2 links below

http://shingekinokyojin.wikia.com/wiki/Mr._Smith

http://shingekinokyojin.wikia.com/wiki/Beast_Titan