The Jackyl formed the group in 1998 and called them "The Parade of Human Oddities." The group consisted of "freakish" wrestlers, including the masked Golga (formerly Earthquake, whose mask had stubby 'horns' on top, thus making him look deformed), the towering Kurrgan (who stood at seven feet tall) and Giant Silva. On one episode of Monday Night Raw, the stable appeared in a segment with Howard Stern Show regulars Hank the Angry Drunken Dwarf and Crackhead Bob. Under the leadership of the Jackyl, the Oddities were a fearsome group of heels though they did not win any titles.
Jackyl, however, soon left the Oddities to become the manager of Hell's Henchmen (later renamed The Acolytes). Luna Vachon reintroduced the Oddities in a more respectable light, and they were now portrayed as fun loving faces in spite of their "freakish" appearances. As part of their new persona, the group would dance after matches, whether they won or lost. Their new entrance music was performed by Insane Clown Posse, who also accompanied them to the ring for their matches. They also rapped the song live during the Oddities' entrance for their match at SummerSlam in August 1998. At the event, Kurrgan, Golga and Giant Silva defeated Kaientai (Taka Michinoku, Dick Togo, Mens Teioh and Sho Funaki). That same month, Sable, who had previously feuded with Luna, was introduced as a member of the stable. Off-screen, the idea to pair Sable with the Oddities was Vince McMahon's. In December, Luna turned heel and attacked Sable while dressed as the "Spider Lady," beginning a feud between the two over the WWF Women's Championship. Meanwhile, the Insane Clown Posse feuded with The Headbangers.
At the Royal Rumble in 1999, Golga made a rather short appearance before being eliminated by Steve Austin. Kurrgan also made an appearance but was eliminated by Kane. For a brief period, they were joined by George "The Animal" Steele, who was referred to as the "original Oddity".