Stephen Colbert posts photo in Hobbit costume at Smaug filming location

Stephen Colbert has reprised his role from The Hobbit films for a photo on Twitter and probably for a segment on The Late Show.

The US TV star and self-confessed JRR Tolkien superfan is in Aotearoa filming a series of segments that will be broadcast on his CBS show in November.

Colbert had a cameo in Sir Peter Jackson's 2013 film The Hobbit: The Desolation of Smaug as one of a gang of Laketown Spies.

On Tuesday, he tweeted a photo of himself in the same costume at one of the film's South Island locations.

"Laketown Spy returns!" he captioned the photo, along with a hashtag acronym for The Late Show with Stephen Colbert in New Zealand.

Colbert was personally invited to New Zealand and offered Hobbiton citizenship by Prime Minister Jacinda Ardern.

His presence in the country became known on October 11, when he was photographed with Ardern at a cafe in Auckland before hanging out at her house for a while.

On October 14, he was photographed on the Wellington waterfront with Kiwi actors Bret McKenzie and Lucy Lawless.

According to Stuff, the trio was filmed outside the Museum of New Zealand Te Papa discussing New Zealand slang and sharing Kiwi food like Marmite on toast, onion dip and pavlova.

No photos have emerged of Colbert meeting Sir Peter in the capital, but it's highly likely the pair of passionate Tolkien fans were reunited during the American's visit.

Newshub.