Luke Perry suffered a stroke on Wednesday, which is ironically the same day as the announcement of a “90210”revival that he’s apparently NOT taking part in.

Perry’s been in the hospital since Wednesday morning. Perry’s rep said he’s, quote, “under observation.”

There’s no word yet on his condition, but TMZ says the stroke was “massive”.

Perry currently plays Archie’s dad on the CW series, “Riverdale”.  He’s 52.