| GUID | Player | Team | League | Division | Joined | Abandoned |
|---|---|---|---|---|---|---|
| tDI Nightmare | TDI Clan | CAL | gcpl | 2007-08-11 | 2007-08-12 | |
| The-Nightmare | myCore.World in Conflict | CAL | wic5 | 2007-07-26 | — | |
| R2D Nightmare | Uber Pwnage | CAL | h2v2 | 2007-02-22 | 2007-07-06 | |
| HC NiGhtMaRe | HsP | CAL | h2v2 | 2006-09-30 | 2007-01-01 | |
| NiGhTMaRe.TmP | noname | Team #91781 | CAL | DOTA Open | 2006-05-10 | 2006-05-17 |
| TMD-nIghtmAre | noname | The Most Dominant | CAL | DOTA Open | 2006-03-01 | 2006-04-25 |
| vsa-nightmare | Vital Signs Absent | CAL | DOTA Open | 2008-11-12 | — | |
| Nightmare | Nightmare | Bound 4 Glory | CAL | Open | 2009-02-14 | — |
| ultra-nightmare | noname | DotA Banlist Association | CAL | DOTA Open | 2006-03-01 | 2006-04-25 |
| Nightmare 0:1:9464734 | [INACTIVE] Suck my Glock | CAL | Open | 2006-07-04 | 2006-10-23 | |
| nC ViCe or nC NiGhTmArE | T3aM nC | CAL | h2o | 2006-02-28 | 2006-05-19 | |
| Nightmare 0:0:11710512 00:18 | Clan Sickness | CAL | Open | 2007-01-15 | 2007-05-07 |