Peter Parker: ILE (I might consider LII, but I think Se Role is obvious when he gets Venom-ized)
Mary Jane: SEI/IEI
Harry: SLE
Flint Marko/Sandman: LSE
Eddie Brock/Venom: SEE
Gwen: IEI
Aunt May: EII
Jonah Jameson: LSI/LIE
(His secretary: SEI )