Marvel Universe/S

Sebastian Shaw
Sebastian Shaw is a mutant who can absorb physical energy and convert it into raw strength. He is the Black King of the Hellfire Club. Sebastian's most trusted aide was an assistant named Tessa, who was actually a spy working for Charles Xavier. Within the ranks of the Hellfire Club, Shaw only considered Emma Frost his equal. Sebastian's son, Shinobi Shaw, became leader of the Upstarts.

Stretcho
Stretcho was a contortionist who worked at a circus. He was an associate of Frederick J. Dukes, aka, The Blob, and was one of several circus performers who assisted The Blob in an assault on Xavier's School for Gifted Youngsters. Stretcho fought up against the X-Men and was defeated by Angel. He had his memory of the event erased by Professor X's mass influencer.

Svenzaldo Zambooba
Svenzaldo Zamboobawas an acrobat and trapeze performer who worked at a circus along with his brother. He was an associate of Frederick J. Dukes, aka, The Blob, and was one of several circus performers who assisted The Blob in an assault on Xavier's School for Gifted Youngsters. Svenzaldo fought up against the X-Men and managed to tackle Angel. He was defeated and had his memory of the event erased by Professor X's mass influencer.