“Watch What Happens Live" host Andy Cohen will guest star as himself on an upcoming episode of the hit CW series 'Riverdale'. According to a synopsis, Cohen will be an old friend of the Lodge family who has come to Riverdale to offer Veronica's mother Hermione a helping hand.” In addition to 'Riverdale, Cohen has appeared as himself in TV shows The Comeback, Unbreakable Kimmy Schmidt, Nightcap and Difficult People. 'Riverdale' airs Wednesday nights at 8 PM on The CW.