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Felton shared a photo with his former co-star as well, captioning his post, \"My father heard about this , play i was in @222aghoststory\" -- an apparent reference to his character's repeated refrain throughout the movies and books (variations on the phrase, \"My father will hear about this\").

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A post shared by Tom Felton (@t22felton)

\"Harry Potter\" fans were thrilled to see the duo reunite and flooded the comments with support.

The two appear to have remained close since the final film in the series was released in 2011. In June, Felton shared a throwback photo of them in character to wish Isaacs a happy birthday. \"Happy birthday Father 🐍\" he captioned his post.

The duo also discussed their time working together on the \"Harry Potter\" films during the \"Harry Potter 20th Anniversary: Return to Hogwarts\" special, which was released in January.

\"Working with Jason was a real treat,\" Felton said in a clip he shared on Instagram at the time, pausing before adding, \"In fact, working with Jason was not always a treat... just immediately turned into the most unfriendly, horrible person I've ever met [when he got into character].\"

\"I just remember grabbing him and being as unpleasant as I possibly could and watching his little face constantly seeking my approval,\" Isaacs said.

\"He'd be this evil father, then they would say cut and he would come and give you a cuddle and go, 'Did I hit you too hard?'\" Felton added.

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