Probably you think haffner is RJ But we know Haffner could be only the conection of Bret to the CBI, FBI and inclusive to Sophie Miller, so they are working together and Haffner its just a RJ assistant, Bret could persuade Haffner to do dirty work, that way Bret saves himself for every charge he could involved, because his followers do everything. So i just say RJ it's not one only person: "The worker" (Haffner, Thimothy Carter, etc) "The mind" is bret and "The cover" all The tiger tiger Org. (Reed, Bertram, etc)
Or,  just only RJ is playing with the "tiger tiger" thing, and he wants to involve the "secret org" of the FBI for a patrick headache


If you remember, bertram says a piece of the William Blake poem...


Just my opinion i don't remember well all the tv show, if i'm wrong, let me know, sorry for my bad english, i'm from mexico, Saludos!