- 2 SKULL-MASTER
- 8 Skull-Taker
- 2 Skull_skewer
- 2 Skull_skewer *Recreated from UTRUSH*
- 3 Skullk[ß]
- 4 Skullskewer
- 2 Skully
- 2 skunkLAUNCHER
- 6 Sky
- 2 Sky 'Rainman' Cearns
- 2 SL.Apophis
- 6 Slagg
- 2 Slapshot "Robert J. Missionario" + <lol>BK
- 6 SLAPSHOT (Robert J. Missionario)
- 5 slarty
- 4 Slaughter
- 3 Slayer
- 2 SlayerGR
- 4 Slayer{GR}
- 2 Sled Dog "Remade by: BudLite"
- 2 Sled dog-ModifiedTyrantboss
- 2 sleepyhead
- 8 sleo
- 4 Slewfoot
- 2 slider aka Bruce Wiechman
- 5 Slim_Shady
- 3 slinky
- 33 Slothious
- 3 Slothious a.k.a.=iNi=Deliverance
- 3 Slow_Gunner
- 3 SLT^Frase
- 2 SLT^Frase - Adjusted[MPUK]Limited
- 3 Sludge
- 2 Slug White
- 2 Sly
- 6 Sly.
- 3 Sm1th
- 2 smaankerezz
- 5 Smallest
- 6 Smartball
- 4 SmasKenS
- 2 SMIFNWESSUN
- 4 SmileY (OriginalId Software)
- 3 SMITHNWESSUN
- 4 smoke
- 6 SmokeRingHalo
- 2 Smurf
- 4 Snakeeyes
- 4 snapman
- 4 sneh
- 2 Sniper0038
- 2 Sniper_Vincent (DM version only)
- 2 Snipershark{VLD}
- 2 SniperWolf{Langel}
- 2 SnoopDawg(CO30-UK)
- 3 Snowy Enigma
- 2 Snowy Enigma Pathing doneCobra
- 2 Snuggs (Che)
- 2 SOB-Chip
- 3 sobo
- 2 Socke
- 4 SoD (aka. SoD.X)
- 3 SoH_Ghost3021
- 2 Sokar468
- 2 Solar-Implosion
- 4 Solaris
- 2 Solaris & Heimdallr
- 2 Solitaire
- 11 Some
- 2 Some Conversion: MaskedMapper
- 3 some retard
- 8 Some1else{RoA}
- 2 Some1else{RoA} PortLaTaRaLuS
- 2 Some1else{RoA} PortLaTeRaLuS
- 2 Someone that owns.