Tom Hiddleston has portrayed Loki since 2011’s Thor, reprising the role in several features since, including recent hits Thor: Ragnarok and Avengers: Infinity War.
The highly-anticipated Loki series was teased at the Super Bowl last week with a short clip appearing to show the title character working for the Time Variance Authority.
The fictional organisation appears in Marvel Comics and monitors the universe’s various parallel time streams – a major plot point in last year’s Avengers: Endgame.
Given the secretive nature of Marvel projects, we’re unlikely to know who Mbatha-Raw will play for some time but fans will no doubt speculate.
One notable character associated with Loki – who has long been rumoured for the MCU – is Enchantress, a sorceress and one of Thor’s most famous enemies.
American comedy star Owen Wilson has also recently joined the series in an undisclosed role.
Loki is scheduled for release on Disney+ in 2021