'Only Murders in the Building' Season 4: Everything We Know, Including Who's Returning & the 4 Who Fans Fear Might Not Be Back

Eva Longoria – New to the Cast!

Eva Longoria has joined the cast of Only Murders in the Building in a recurring role! Plot details are currently being kept under wraps, so we do not know who she’ll portray at this time.

Molly Shannon – New to the Cast!

Molly Shannon has joined the cast of Only Murders in the Building in a recurring role! Plot details are currently being kept under wraps, so we do not know who she’ll portray at this time.