Back when these would crop up, I used to wonder why they ever put Captain Atom on the team if they just didn’t know what to do with him.

Justice League International #20-21 (Dec 1988-Jan 1989)

Justice League International #24 (February 1989)

Justice League America #32 (November 1989)

Justice League America #53 (August 1991)

Justice League America #54 (September 1991)

Justice League Unlimited #7 (May 2005)

Justice League Unlimited #8 (June 2005)

Justice League Unlimited #9 (July 2005)

Justice League Unlimited #13 (November 2005)

Justice League Unlimited #20 (June 2006)

Justice League Unlimited #21 (July 2006)

Justice League Unlimited #22 (August 2006)