Needless to say, his followers found the whole thing rather cryptic and demanded answers:
Of course, it wasn't long before people clocked that Betrayal is the name of a 1978 play by Harold Pinter and fans started speculating that Hiddleston was working on something to do with that – before The Harold Pinter Theatre put us all out of our misery.
"We are so excited to announce @twhiddleston is joining [The Jamie Lloyd Company's] Pinter at the Pinter Season!" the theatre wrote on Instagram, alongside a poster of Tom.
What to Read Next
In the comments, the theatre also confirmed that Tom will be appearing for a limited 12-week run from March 5, 2019 with tickets going on sale on Friday, November 30.
Betrayal charts a compelling seven-year romance, told in reverse chronological order. So far Hiddleston is the only confirmed cast member, with more casting announcements coming in due course.
Earlier this month, it was confirmed that a Loki TV spin-off is in development for new streaming platform Disney+, with Hiddleston due to reprise his MCU role.
The actor used his Twitter account to whip fans up into a frenzy over that news too, tweeting following the announcement to say: "Loki. More stories to tell. More mischief to make. More to come."
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