Black Mamba (Tanya Sealy) is a supervillain in the Marvel Comics universe, most notably a member of the Serpent Society and B.A.D. Girls, Inc.
The character subsequently appeared in Iron Man #160 (July 1982), Captain America #307-308 (July-August 1985), #310-311 (October-November 1985), #313 (January 1986), #315 (March 1986), #319 (July 1986), The Avengers #274 (December 1986), Captain America #341-342 (May-June 1988), #365 (December 1989), The Uncanny X-Men Annual #13 (1989), Captain America #367 (February 1990), #371-372 (June-July 1990), Captain America (1968) #380-382 (December 1990-February 1991), #385-397 (May 1991-February 1992), #411-412 (January-February 1993), The New Warriors #33-34 (March-April 1993), Deathlok #7 (February 2000), Thunderbolts #64 (July 2002), #67 (September 2002), #69 (October 2002), Captain America #30-31 (October-November 2004), Cable & Deadpool #20-23 (November 2005-February 2006), Civil War #5 (November 2006), Civil War Chronicles #8 (January 2007), Giant-Size Avengers #1 (February 2008), and The Amazing Spider-Man #552 (April 2008).
Black Mamba received an entry in the original Official Handbook of the Marvel Universe #2, and The Official Handbook of the Marvel Universe Deluxe Edition #2.
Invited by Sidewinder to join his criminal organization, the Serpent Society, Black Mamba accepted. Before working with Roxxon, she was a call-girl, and while the money was satisfying, it was not a steady income, so she jumped at the opportunity to earn vast amounts of money with Sidewinder. While in the Serpent Society, Black Mamba gained great friendships in Diamondback and the Asp, and also became romantically involved with Sidewinder. During Viper's infiltration of the group, Black Mamba stood loyally with Sidewinder, which Viper was ready to kill her for. When Diamondback turned over a new leaf, it sparked something in Black Mamba. She joined her friends Diamondback and Asp in forming B.A.D. Girls, Inc. and worked several mercenary-for-hire missions. She also briefly served in Superia's all-female group, the Femizons, but betrayed the group to aid Captain America and Paladin. Regardless, she was a villainess and was not above committing evil acts, such as when she led a drugged Hercules to be ambushed by the Masters of Evil.
For some time, Black Mamba served in Crimson Cowl's Masters of Evil in hopes of a large profit, battling the Thunderbolts. She eventually went back to the Serpent Society for a very short time, and then left to be with Diamondback and Asp and continue to do missions as the B.A.D. Girls. During one mission, to find the "Dominus Objective," Black Mamba severely embarrassed Deadpool when she revealed his darkest fantasy -- to be given a back massage by his partner in crime, Cable (although her power similarly affected everyone she used it on in this appearance). She also fought Luke Cage and Iron Fist, and was shocked to realize her group had been hired by Cable himself.
Later Black Mamba and the other BAD Girls were captured by the Mighty Avengers in a New York City street mall. She escaped captivity and was later seen with several other villains in "The Bar With No Name".