Joe Otterson TV Reporter“Perry Mason” Season 2 at HBO is building out its cast.Katherine Waterston (“Inherent Vice,” “Alien: Covenant”) is joining Season 2 as a series regular, while Season 1 star Diarra Kilpatrick is being upped to series regular. Peter Mendoza (“NCIS,” “Shooter”), Hope Davis(“Your Honor,” “Love Life”), Jon Chaffin(“BMF,” “The Haves and the Have Nots”), Fabrizio Guido (“Mr.