Jeffrey Colby (Earth-One)

Jeff Colby
Mainstream Universe‎, 1950s-1986
Gallery
Real Name	Jeffrey Colby
Main Alias	Jeff Colby
Other Aliases	Agent Zero
Relatives	Ida Colby (mother), Lena Thorul-Colby (wife), Val Colby (son), Lex Luthor (brother-in-law)
Affiliation	Federal Bureau of Investigation
Status
Alignment	Good
Identity	Secret Identity
Citizenship	American
Marital Status	Married
Occupation	Government Agent
Characteristics
Gender	Male
Hair	Brown
Origin
Universe	Earth-One
Creators	Leo Dorfman · Jim Mooney
First Appearance	Action Comics #317 (October, 1964)
Appearance of Death	Superman Family #211 (October, 1981)

Powers and Abilities

Abilities

• Espionage
• Deception
• Aviation

Notes

• This version of Jeff Colby, including all history and corresponding appearances, was erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths event and later restored following the rebirth of the infinite Multiverse during the Dark Crisis of 2022-2023. Even though other versions of the character may have appeared, this information does not apply to those versions.

Related

• 3 Appearances of Jeffrey Colby (Earth-One)
• 1 Images featuring Jeffrey Colby (Earth-One)
• Quotations by or about Jeffrey Colby (Earth-One)
• Character Gallery: Jeffrey Colby (Earth-One)