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| Blackjack O'Hare | |
| Continuity: | Marvel Universe |
| Notability: | Supporting character |
| Type: | Evolved animal |
| Occupation: | Mercenary |
| Gender: | Male |
| Race: | Halfworlder |
| Location: | Halfworld, Keystone Quadrant |
| Associations: | Black Bunny Brigade |
| Status: | Alive |
| First: | The Incredible Hulk #271 |
Blackjack O'Hare is a fictional evolved animal and a supporting character featured in comic books published by Marvel Comics. He first appeared in the "Now Somewhere In the Black Holes of Sirius Major There Lived a Young Boy Name of Rocket Raccoon!" story from The Incredible Hulk #271 in May, 1982.