History
Alpha Dog was one seventh of the gestalt entity known as Agatha Harkness - a deadly Hydra cloaked in the form of a human being. Though he was an aspect of the greater hive mind, Alpha Dog could act independently and served as one of the Hydra's seven arms. Taking human form, Alpha Dog was a member of the superhuman team known as the Seven.
When Fantastic Four member Susan Storm began to discover the true identity of the Seven, they abducted her and tried to eliminate her by casting her into the New York Harbor. Susan survived the ordeal due to the intervention of the Sub-Mariner who, along with the rest of the Fantastic Four, accompanied her to the Hydra's nesting ground in Pinhead Buttes, Oregon. There, Susan conducted an experiment that altered the Seven's molecular valences, the end result of which was a giant explosion that destroyed the Seven and the Hydra eggs.[1]Attributes
Powers
- Superhuman Strength: He is able to lift at least several tons.[2]
- Superhuman Durability: Alpha Dog can resist explosions, electricity and energy blasts without damage[3] but the blows of the Thing were enough to take him down.[4]
- Density Manipulation: Alpha Dog could increase Susan Storm's density to make her sink faster.[2]
- Joint Lifeform Fusion: Together the Seven can merge into one being — Agatha Harkness.[5]