The 35-year-old actor posted his very first snap from his verified account on Tuesday, a selfie of him dressed up as beloved Thor villain Loki.
"He's back!" Hiddleston captioned the pic, rocking Loki's signature long dark locks and costume. Hiddleston is currently in Australia filming Thor: Ragnarok, which is set to hit theaters in November 2017.
At the time of publication, Hiddleston currently had 82k followers, though curiously, his girlfriend, Taylor Swift, wasn't one of them. The British actor also isn't following any accounts.
Hiddleston's Thor co-star, Chris Hemsworth, has already weighed in on his highly publicized romance with Swift. Hiddleston previously introduced Hemsworth as well as actor Mark Ruffalo to Swift when they enjoyed a special screening of Ghostbusters last month, an eyewitness told ET.
"I've seen Tom around and he looks happy, mate," Hemsworth told Sydney, Australia's Nova 96.9 radio show with Fitzy and Wippa.