Hmmm, okay....
Toni Taylor (although I'm not sure how mad she would really be... at least at Clark) and what about her brother? Wouldn't they have gotten him too?
Miranda from PML - she definitely hates Lois.
Peter Roarke from HiM
Barbara Trevino from Witness
Constance (the magician) from Illusions of Grandeur
Henry and Lena Harrison from Ides of Metropolis
Preston Carpenter from The Rival
The thugs and Willie the security guard from Fly Hard.
Mrs. Cox
And that's all I can think of for now from Season 1... I'll let someone else take a turn <g>