List of Sinister Six members

Doctor Octopus(a.k.a. The Superior Spider-Man / The Superior Octopus)

Otto Gunther Octavius

The Amazing Spider-Man Annual #1 (October 1964)

Current member and leader of the Sinister Six. Left team after the third incarnation had disbanded. Founded the seventh incarnation of the team during the Superhuman Registration Act and disbanded after Ends of the Earth. While Octavius' mind was in Peter Parker's body, he captured and assembled his own "superhero team" which he controlled through tech implanted in the villains. The team later disbanded once the villains regained control; the team reassembled once again while under the influence of Kindred. Former member of the Masters of Evil, the Thunderbolts, the Avengers, Parker Industries, the Spider-Army/Web-Warriors and Hydra.

Electro

Maxwell "Max" Dillon

Current member. Left team after the fifth incarnation had disbanded. Re-joined team during Ends of the Earth and disbanded when captured. Later was brainwashed by Octavius (while in the body of Peter Parker) to join the "Superior Six". He regained control of his mind and left the team. Dillon re-joined the team while under the influence of Kindred. Former member of the Emissaries of Evil, the Frightful Four and the Sinister Twelve.

Kraven the Hunter

Sergei Nikolaevich Kravinoff

Current member. Left team after the first incarnation had disbanded.

Mysterio

Quentin Beck

Current member. Left team after the fourth incarnation had disbanded. Re-joined team during Ends of the Earth and disbanded when captured. Later was brainwashed by Octavius (while in the body of Peter Parker) to join the "Superior Six". He regained control of his mind and left the team. Beck re-joined the team while under the influence of Kindred.

Sandman

William Baker (a.k.a. Flint Marko)

Current member. Left team after the second incarnation had disbanded. Formed and led the fifth incarnation to get revenge on Doctor Octopus. Re-joined team during Ends of the Earth and disbanded when captured. Later was brainwashed by Octavius (while in the body of Peter Parker) to join the "Superior Six". He regained control of his mind and left the team. Joined a new incarnation led by Aaron Davis and later left the team. Baker re-joined the team while under the influence of Kindred. Former member of the Avengers, the Frightful Four, the Wild Pack and the Sinister Twelve.

Vulture

Adrian Toomes

Current leader of the Savage Six under the influence of Kindred. Founding member, left the team after the fifth incarnation had disbanded. Re-joined team during the Superhuman Registration Act and disbanded after Ends of the Earth. Later was brainwashed by Octavius (while in the body of Peter Parker) to join the "Superior Six". He regained control of his mind and left the team. Former member of the Sinister Twelve.