Sergeant Callahan

Full Name: Sergeant (first name unrevealed) Callahan
Codename: None
Known Relatives: None
Group Affiliation: Newport News Police Department
First Appearance: ASH #93
Powers: None, but an experienced law enforcement officer
Notes: Leads the SWAT team for Newport News, Virginia Sector, and works closely with A.J. Jackson. Has been a cop since the 1990s.

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