Matthew Perry’s guilty-pleading assistant has donned a nickname referencing the actor’s love of Batman. The Friends star allegedly referred to his live-in assistant Kenny Iwamasa as “Alfred”, RadarOnline.com can reveal. Another outlet claims Iwamasa was “the ‘Alfred’ to Perry’s ‘Batman'”. The revelation of Iwamasa’s alleged moniker — coincidentally the same name as Perry’s dog — comes amid the unfurling court cases against the five people allegedly involved in the actor’s death. The other people charged in Perry’s death include: Jasveen Sangha, 41, known as”The Ketamine Queen”, Dr. Salvador Pl…