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SEASON 5: Is LORD OF THE RINGS Star Sean Astin back on SUPERGIRL? Making Another Cameo?

Supergirl

Is Goonies, Lord of the Rings, Stranger Things star Sean Astin back guest starring on Supergirl?

It sure looked like him in the library stacks with Kara Danvers (Melissa Benoist) on Wednesday for episode 5×18.

Earlier this season, Sean Astin made a surprise appearance as Pete, an army friend of Kelly (Azie Tesfai)’s suffering from PTSD. But it turned out Pete was actually J’onn J’onzz’s shapeshifting brother Malefic J’Onzz.

So who is Sean Astin playing this time? The real Pete or someone else?

Outside the Surrey City Centre Library — where this cameo was filmed —  were scenes of destruction.

Related: What Happened to the DEO? Supergirl Films Scene of Destruction at Surrey City Hall Plaza.

Supergirl airs Sundays at 9 p.m. on The CW.