Comic-Con is taking place this weekend,and we're celebrating all the geeky fun. Both celebrities and cosplayers are a common sight at the event, and sometimes the two collide when a star decides to channel a eminent character - be they a eminent figure in geek culture or a character that they've played themselves. While Tom Hiddleston dressed up as his Avengers character Loki in 2013, and Mark Ruffalo cleverly disguised himself with a mask at unique York Comic-Con final year. preserve scrolling to see all the celebrities who not only showed up but dressed up!- Additional reporting by Maria Mercedes Lara and Maggie Pehanick
Source: popsugar.com