Not sure about a triple alliance or about a jumpsuit, but Chris Jericho was small had long (blond) hair and a beard, debuted in 1999, and shouted at and with the audience. Other than that, I guess X-Pac was small, and he wore a bodysuit and he had long stringy (black) hair and a beard, but he didn't talk much and when he did he was usually stoned off his gourd. Wait -- "triple alliance" might be DX themselves? Billy Gunn was off doing his own thing for most of 1999 so there would have been only three in that group (X-Pac being part of them).
Vince was that guy, yeah. He got in trouble in the early '90s for distributing steroids to wrestlers and to himself. Looks like he never left off. (Steroids were banned in the WWF and Hulk Hogan went from huge to shrivelled in about three months).