| For alternate versions of J'onn J'onzz, see J'onn J'onzz's Character Hub. |
- "I gave you a warning. Your failure to deliver the Kryptonian traitor is being taken as an act of war."
- ―Dru-Zod to J'onn J'onzz[src]
J'onn J'onzz was a Martian posing under the name Calvin Swanwick, who was killed by Dru-Zod.
Biography[]
Battle at Edwards Air Force Base[]
J'onn J'onzz commanded the United States Army under the alias Calvin Swanwick during their encounter with Dru-Zod, but when Zod realized that Swanwick had arrived without any Kryptonians as requested, he considered it an act of war and killed him by deploying his blade.[1]
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