The cast of Netflix's Riverdale has paid tribute to actor Luke Perry who died four months ago, aged 52, after suffering a stroke. 

The Beverly Hills 90210 star had appeared in the teen drama since it arrived on screens in 2017 and his death came in the middle of its third series.

As the cast returned to start shooting series four, actress Madchen Amick posted a picture from the set showing her co-stars working on the new episodes.

She captioned the post: "There was nothing but love, memories and mourning for our beloved Luke as we honor him in our first episode back."

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Amick, who plays Alice Cooper on the show, added the hashtag #wemissyouluke.

Her co-stars KJ Apa, Cole Sprouse, Lili Reinhart, Camila Mendes and Madelaine Petsch all featured in the picture, as did show creator Roberto Aguirre-Sacasa.

Perry's son, Jack, commented with a love heart emoji while the Archie Comics Instagram account commented with three hearts. Perry's 90210 co-star, Christine Elise, also responded, writing that the reunited cast of the hit 90s show was "living in the same sadness."

It has also been revealed that the first episode of the new series of Riverdale will be titled In Memoriam and is a tribute to Perry who played Fred Andrews on the show.

Perry's final on-screen appearance will come in Quentin Tarantino's dark comedy Once Upon A Time In Hollywood, which will be released later this month.

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