Marvel fans, brace yourselves. Tom Hiddleston just teased the return of Loki in Thor: Ragnarok, and it's pretty incredible. Donning his character's flowing black locks, the British actor posted a devilishly handsome selfie with the caption, "He's back!" While there have been a plethora of fun snaps from set, this might be one of the best, seeing as the attractive villain is easily one of the most popular characters from the franchise. Not to mention, it's Hiddleston's first Instagram post. Here's hoping there are more fun behind-the-scenes moments to come!