Roberto Aguirre-Sacasa took to Twitter on Wednesday to announce that Perry will be in this week's episode of the CW series.
Luke Perry's son is honoring his late father.
The actor died on Monday after a massive stroke.
ET looks back at some of the late 'Beverly Hills, 90210' star's most memorable moments.
New details about the 'Beverly Hills, 90210' and 'Riverdale' star, who died on March 4.
Luke Perry was, by all accounts, a lovely human being and a true gentleman.
The beloved actor died on Monday after suffering a stroke.
ET has learned that production on 'Riverdale' remained shut down on Tuesday, following the death of actor Luke Perry on Monday.
Shannen Doherty is still trying to process the death of her close friend and former 'Beverly Hills, 90210' co-star, Luke Perry.
A source tells ET this has been the 'most challenging week' of their lives.
Ripa opens up about her relationship with Perry, who died on Monday at age 52.
The 'Beverly Hills, 90210' star died on Monday after suffering a massive stroke days earlier.
In celebration of the late actor's lasting pop culture legacy, ET is looking back at some of Perry’s best 'Riverdale' moments.
Luke Perry, best known for his roles on 'Beverly Hills, 90210' and 'Riverdale,' has died. He was 52. His rep confirmed his death on Mon
