CharacterRobotman (Cliff Steele), Viking Prince, Vandal Savage, Blackhawk (Bart Hawk), Hourman, Jess Bright, Alan Scott (Green Lantern), Challengers of the Unknown (Rocky Davis, Rocky Davis) (in newsreel), Bugs Bunny, Captain Cold (Len Snart), Batman (Bruce Wayne), Spectre (Jim Corrigan), Challengers of the Unknown (Red Ryan, Kid Flash (Wally West, Elasti-Girl (Rita Farr), Plastic Man, Aqualad (Garth), Dr. Leslie Thompkins, Niles Caulder, Doctor Mid-Nite [Doctor Charles McNider], Starro, Sarge, Walter Cronkite, Dr. Fate (Kent Nelson), Task Force X (Col. Rick Flagg, Jack Ryder, J'onn J'onzz (John Jones), Wildcat, Iris Allen, Zatanna, Karin Grace), Darkseid, Mlle. Marie, Ace Morgan, Sgt. Rock, Doctor Light, Doctor Fate (Kent Nelson), Hawkgirl (Shiera Sanders), Hawkman (Katar Hol), Hour-Man (cameo), Bonnie Baxter, Vice Pres. Richard Nixon, Challengers of the Unknown (Prof Haley, Robin (Dick Grayson), Dr. Charles McNider (Dr. Mid-Nite), Chuck Yeager, Star Sapphire, Dr. Erdel, Billy Batson (Captain Marvel), Dr. Erdel (in briefing materials), Pres. Dwight D. Eisenhower, Kid Flash (Wally West), John Jones), Lead, Hawkman (Carter Hall), Mister Mxyzptlk, Sinestro, Alanna, The Blackhawks, Col. Rick Flagg, Green Arrow (Oliver Queen), Cassius Clay (Muhammad Ali), John Henry Irons, Slam Bradley, Supergirl (Kara Zor-El), Hal Jordan (Green Lantern), Pancho Barnes, Red Ryan), a Guardian of the Universe, Adam Strange, June Robbins), Steve, Lex Luthor (cameo), Doc Magnus, Tin, Johnny Cloud, Barry Allen, Jess Bright), Iron), Chief (Niles Caulder), Roy Raymond (referred to in Iris' article), Green Lantern (Hal Jordan) (Cameo), Atom (Ray Palmer), Dinah Drake (Black Canary), The Losers (Capt. Storm, Prof Haley, Dr. Mid-Nite (Charles McNider), Catwoman (Selina Kyle) (cameo), The Flash (Jay Garrick)) (all in cameo), Metamorpho (Rex Mason), Jimmy Olsen, Tom Kalmaku, The Flash (Jay Garrick)), Adam Strange (in photo-clipping), Black Manta, Two-Face, Joker, Rick Flag, Jr., Captain Marvel (Billy Batson), Prof Haley), Phantom Stranger, J'onn J'onzz (Martian Manhunter, Brainiac, Blackhawks, Gold, Wonder Woman (Diana Prince), Red Ryan, King Faraday, Barry Allen (The Flash), Abin Sur, John Jones (J'onn J'onzz, Captain Nathaniel Adam, Green Lantern (Hal Jordan), Sivana, Capt. Nathaniel Adam, Ace Morgan), Gunner, Lex Luthor, Task Force X (Jess Bright, Martian Manhunter, Lois Lane, Wonder Woman (Diana Prince) Green Lantern (Hal Jordan), Aquaman (Arthur Curry), Carol Ferris, Alfred Pennyworth (Cameo), Hawkgirl (Shiera Hol), Native American (from early television sign-off image)), The Sea Devils, Solomon Grundy, Gentleman Ghost, Crystal, Task Force X (Col. Rick Flag, John Henry (John Henry Wilson), Ted Grant (Wildcat), Gorilla Grodd, Iris West (not pictured), Animal Man, Rip Hunter, Doom Patrol (Negative Man (Larry Trainor), Groucho Marx, John Henry, John F. Kennedy (cameo), Martian Manhunter), Rocky Davis, Johnny Thunder (western hero, on TV screen), Black Canary (Dinah Drake), Karin Grace, Edward R. Murrow, Justice Society of America (Green Lantern (Alan Scott), Superman (Clark Kent), Teen Titans (Wonder Girl (Donna Troy), Speedy (Roy Harper), Ray Palmer, Dr. Hugh Evans), Hal Jordan, Col. Rick Flag, Pooch), Iris West (in photo), Metal Men (Doc Magnus, Vigilante (Greg Saunders), Rocky Davis), Selina Kyle (Catwoman), Cheetah, Platinum (Tina), Harry Lieter, Dr. Hugh Evans, also as Wally Wood), Theodore Smiesel, Larry Trainor, also John Jones), J'onn J'onzz (Martian Manhunter), Oliver Queen (Green Arrow), June Robbins, Dwight Eisenhower, Mercury, Iris West, Butch Luchick, Commissioner Jim Gordon, Flash (Barry Allen)
Superhero TeamChallengers of the Unknown