iZombie 1×10 “Mr. Berserk” – Liv (Rose McIver) and Clive (Malcolm Goodwin) investigate the murder of a journalist working on a story linking psychotic episodes in a small number of consumers to the energy drink Max Rager. Liv goes straight to the top at Max Rager HQ and questions the man in charge, Vaughn Du Clark (guest star Steven Weber). Meanwhile, Ravi (Rahul Kohli) tries to help Major (Robert Buckley) who continues to believe he’s going crazy. David Anders also stars. Jason Bloom directed the episode written by Deirdre Mangan & Graham Norris (#110). Original airdate 5/19/2015.