<span class=normal>Whenever we speak of on-screen character metamorphosis, the only name that pops up in our minds is that of Gulshan Grover, the man who is considered to be the master of costumes and disguises. <br><br><br><p class=clear>&nbsp;</p>Well, it seems that now, Ajay Devgn is all set to give Gulshan and likes a run for their money, with his latest avatars in Prabhu Dhevas next film Action Jackson. The only difference is that, this time round, Ajay will not resort to any kind of costume drama, but will let his characters look do all the talking. </span>