Anton Vanko (Earth-81648)

Anton Vanko is the half-brother of Tony Stark, and currently the technologically-enhanced villain, Whipshock.

History
Anton was born to his mother, Ivanna Vanko, a month after his father left her. He was given the surname Vanko, instead of Stark, and raised in a home that despised Howard Stark. As he grew up, he learnt that Howard had another son, Anthony Stark, who he cared for dearly. Already incredibly angry at Howard, he grew up also hating Tony for being the son Howard chose to care for.