Because the show was initially intended as a limited series based on Liane Moriarty's bestselling novel, the actors weren't optioned for additional seasons when they signed on for Season 1, but most of the cast is expected to return and negotiations are currently underway, per HBO.
HBO says the second Season will "explore the malignancy of lies, the durability of friendships, the fragility of marriage and, of course, the vicious ferocity of sound parenting.* Relationships will fray, loyalties will erode…the potential for emotional and bodily injury shall loom." Read more...