Leo appeared as part of the "Zodiac" entry in The Official Handbook of the Marvel Universe Deluxe Edition #20.
Each member was based in a different American city as part of his nationwide criminal network, with the ultimate goal of world economic and political domination.
[1] Led by Taurus, the Zodiac later attempted to kill all Manhattan residents born under the sign of Gemini as a show of power, but were thwarted by the Avengers.
[3] An android Leo was a Life Model Decoy created by Scorpio (Jacob Fury) in his "Theatre Of Genetics" to be part of his Zodiac crime organization.
Immediately afterward, Van Lunt sought out the services of the Avengers' West Coast branch to confront and defeat the android Zodiac.
As the Zodiac LMD's had their final confrontation with West Coast Avengers, it was revealed that the female Leo had infiltrated the group.
[volume & issue needed] The fifth Leo is an unnamed man who Thanos recruited to join his incarnation of the Zodiac.
The Android Leo has super human strength, agility, endurance, a set of razor sharp claws, enhanced hearing and vision.
The fifth Leo is an unnamed man who wears a special suit that enables him to assume the form of a humanoid lion.