Alias Challengers I

Challengers III

Challengers of the Unknown
Nick Name

Fear Fighters

Fearless Foursome

Challengers I

Corinna Stark

Cosmo

Dr. June Robbins

Kyle (Ace) Morgan

Les (Rocky) Davis

Matthew (Red) Ryan

Professor Walter Haley

Tino Manarry

Challengers II

Clay Brody

Brenda Ruskin

Kenn Kawa

Marlon Corbet

Challengers III

Holden Crosse

Kendra Harte

Rydell Starr

Occupation
Group of adventures and explorers for hire.
Legal Status
Citizens of the United States with no criminal records.
Nation or Planet of Origin
Earth
Group Alliances
|
Base of Operations

Challengers I

Challengers Mountain: Secret headquarters hidden underground in the Colorado Rocky Mountains.

Accessories

Challengers I

Resources of Challengers Mountain

Common Enemies

Aliens

League of Challenger-Haters

Monsters

Robots

Villo

Volcano Man

Regularly Appearing

Challengers of the Unknown Vol. 1, 2, 3, 4, 5 & 6

Showcase Vol. 1

First Appearance
Showcase #6 (Jan. - Feb. 1957)
Creator
Joe Simon & Jack Kirby

Note: Dave Wood is credited with the story for the first Challengers of the Unknown story in Showcase #6, but the concept originated with Joe Simon and Jack Kirby before the two parted ways during a low point in comics sales during the 1950's.

Origin
Four men of science and adventure miraculously survive unscathed an otherwise fatal plane crash.

Red Ryan observed that his wristwatch was still intact and keeping perfect time.  "Borrowed time," added Ace Morgan, and the others agreed that they were living on borrowed time which might be better spent taking risk for the benefit of humanity as the Challengers of the Unknown.