Acceptable O.C.C.s for the NSC:

Borg, partial and full conversion
CS (or equivalent) Grunt
Headhunter
Juicer
Body Fixer
City Rat
Operator
Rogue Scientist
Rogue Scholar
Wilderness Scout
Vagabond
Line Walker
Mystic
Shifter
Techno-Wizard
Burster
Psi-Stalker
Dog Boy
Mind Melter
Warlock
Rifts Priest
Dragonslayer
Atlantean Nomad
Altara Warrior
Undead Slayer
Stone Master
Bio-Borg
Earth Child
Star Child
Temporal Wizard
Temporal Warrior
Temporal Raider
Bounty Hunter (Mercs)
Forger
Freelance Spy
Master Assassin
Safecracker
Smuggler
Special Forces (Mercs)
Super-Spy
Professional Thief
Gambler (Juicer Uprising)
Wannabe Juicer
Psi-Druid
Psi-Ghost
Psi-Nullifier
Psi-Slayer
Psi-Tech
Psi-Warrior
Zapper
Merchant Marine
CS K-9 "Sniffer"
Bandit
Bandit: Highwayman
Bounty Hunter (New West)
Gunfighter
Gunslinger
Justice Ranger
Psi-Slinger
Saddle Tramp
Sheriff/Lawman
Sheriff's Deputy
Wired Gunslinger
Cowboy
Preacher
Professional Gambler
Tribal Warrior
Mystic Warrior
Totem Warrior
Spirit Warrior
Plant Shaman
Animal Shaman
Mask Shaman
Healing Shaman
Paradox Shaman
Elemental Shaman
Fetish Shaman
Wendigo
Battle Magus
Controller
Lord Magus
High Magus
Conjurer
Grey Seer
Mystic Knight (Order of the White Rose only)
Explorer (Russia)
Travelling Story Teller (Russia)
Tundra Ranger
Tundra Ranger Scout
Tundra Ranger Cavalry
Trapper-Woodsman
Techno-Headhunter
Headhunter Assassin
Momano Headhunter
True Sasquatch
Worldly Sasquatch
D-Bee Computer Empath (Rifters)
Combat Techno-Wizard
Texas Slinger
Techno-Wizard Aviator
Techno-Wizard Gun Bunny
Techno-Wizard Theif
Techno-Wizard Vamp Hunter
Barnstormer
City Operator
Wilderness Operator
Armorer
Weapon Mage
Scav
Miner
Nuclear Priest
Dinosaur Rider
Draelok
Hawk Gryphon
Falcon Gryphon
Eagle Gryphon
Owl Gryphon
Vulture Gryphon
Headshrinker
Private Investigator
Con Artist (www.rifts-rpg.com)
Enchanter