Robert Downey Jr. welcomes Tom Hiddleston to Instagram as “the biggest Tony Stark fan of them all!”

The two actors play enemies in the film version of the Marvel Comics universe

Robert Downey Jr. has welcomed Tom Hiddleston to Instagram with a nod to their roles in Marvel’s cinematic universe.

Downey Jr. has played Tony Stark – or Iron Man – in the film world of the Marvel universe since 2008, while Hiddleston plays the role of Loki in the Thor franchise. The two appeared on screen together in these roles in the 2012 film The Avengers.

Hiddleston joined Instagram yesterday (August 9), much to Downey Jr.’s apparent delight. Posting a photo from July of Hiddleston wearing an “I [Heart] T.S” t-shirt – referring to his relationship with singer Taylor Swift – Downey Jr. took the opportunity to bring their Marvel characters into the conversation.

“Join me in welcoming the biggest T. Stark fan of them all to Instagram! @twhiddleston” the actor wrote. See the post below.

Join me in welcoming the biggest T. Stark fan of them all to Instagram! @twhiddleston

A photo posted by Robert Downey Jr. (@robertdowneyjr) on

Prior to Downey Jr.’s jibe, Hiddleston’s first post on Instagram was of him in costume as Loki. Writing “He’s back!”, the photograph appeared to be taken on the set of the upcoming Thor film, Thor: Ragnarok, which is set for release in November 2017. See the post below.

He’s back!

A photo posted by Tom Hiddleston (@twhiddleston) on