The 44-year-old star left legal drama Suits eight years ago before announcing her engagement to Prince Harry, but now she has reportedly landed a cameo role in upcoming movie Close Personal Friends.
An insider told The Sun newspaper: "This is a massive moment for Meghan and signifies a return to doing what she truly loves. She has been swamped with offers but this one felt right.
"It is Meghan's way of gently putting her toe back in the water and seeing how she enjoys being back on set.
"Everyone involved is super-excited, and have been sworn to secrecy about her involvement."
It's said she will play herself in the upcoming Amazon MGM Studios movie, which stars Brie Larson, Lily Collins, Jack Quaid and Henry Golding.
Before joining the British royal family, the actor - then known as Meghan Markle - landed roles in the likes of Horrible Bosses, Anti-Social, CSI: NY, 90210, Knight Rider and Castle.
She has not acted since wrapping her final scene for Suits in 2017, which aired the following year.
Meghan has been seen on set in Pasadena, California for her upcoming project, and it's said she appeared "relaxed and happy".
During a joint engagement interview with Harry in 2017, Meghan opened up about her decision to move to the UK and leave her acting career behind.
She told BBC presenter Mishal Husain at the time: "I don't see it as giving anything up, I just see it as a change.
"It's a new chapter. Right. And also keep in mind I've been working on my show for seven years.
"So we're very very fortunate to be able to have that sort of longevity on a series and for me, once we hit the 100-episode marker I thought, you know what, I have ticked this box and I feel really proud of the work I've done there and now it's time to, as you said, work as a team with you (Harry)."
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