Calvin Rankin is a mutant who goes by the alias Mimic.
- Species: Mutant
- Place of Birth: Passaic, New Jersey
- Gender: Male
- Formal Name: Calvin Montgomery Rankin
- Alias: Mimic
- Nicknames: Cal
- Alignment: Good
- Affiliation(s): X-Men (Team Wolverine), Dark X-Men, Brotherhood of Mutants, Excalibur
- Father: Ronald Rankin †
- Mimicry: the ability to temporarily mimic the powers and skills of nearby people or mutants.
- Cryokinesis: he has permanently mimicked Iceman's ability to manipulate and generate ice and coldness.
- Enhanced Agility: he has permanently mimicked Beast's superhuman agility.
- Enhanced Strength: he has permanently mimicked Beast's superhuman strength.
- Optic Blasts: he has permanently mimicked Cyclops' ability to shoot energy beams from his eyes.
- Telekinesis: he has permanently mimicked Jean Grey's ability to move objects with his mind.
- Telepathy: he has permanently mimicked Professor X's ability to read and manipulate others' mind.
- Wing Manifestation: he has permanently mimicked Angel's large feathery wings.