Listing off every NPC I've used so far, and if they're not the same as their comic book and/or movie counterpart, I've given a short blurb on what I've done with them:

[hider=Superman's NPC Index]
[b]Primary NPCs:[/b]
Lois Lane
Jimmy Olsen
Perry White
Martha Kent
Jonathan Kent [DECEASED]
G. Gordon Godfrey
Dr. John Henry Irons
Mercy Graves- Lex Luthor's new assistant, has connections with [REDACTED]

[b]Minor NPCs:[/b]
Officer Scott Laughlin- MPD police officer
General Calvin Swanwick
Lt. Gus Gorman- Air Force cybersecurity officer serving under General Swanwick
Eve Tessmacher- Lex Luthor's previous assistant [DECEASED]
Bibbo Bibbowski
Kelex- Kryptonian servant drone recently re-activated.  Currently only speaks Kryptonian.  Current whereabouts unknown.

[b]Mentions:[/b]
Lana Lang- Clark's childhood sweetheart, whereabouts currently unknown
Pete Ross- Clark's friend from Smallville, currently works at the IHOP while aspiring to get into local politics
Glen Woodburn- disreputable blogger sometimes used as a source by Lois Lane
Kobe Asuru- African civil rights activist, now deceased
General Kwaku Amajadh- civil rights activist turned militant extremist, now in custody

[b]Villains:[/b]
Lex Luthor- billionaire tech mogul and annoying creeper, currently based on the [i]BvS[/i] incarnation
Toyman- chaotic cyber-terrorist, current identity and motivation unknown
Parasite (in custody)
Livewire (in custody)
The Atomic Skull (in custody)
The Bulleteers (in custody)

[color=2E2C2C]MR. MXYZPTLK- OBNOXIOUS INTERDIMENSIONAL SMARTASS WHO'S PROVIDING COMMENTARY IN HIDDEN TEXT[/color]
[/hider]