CharacterRobotman (Cliff Steele), Viking Prince, Jess Bright, Hourman, Vandal Savage, Blackhawk (Bart Hawk), Alan Scott (Green Lantern), Challengers of the Unknown (Rocky Davis, Bugs Bunny, Rocky Davis) (in newsreel), 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), Jack Ryder, J'onn J'onzz (John Jones), Wildcat, Iris Allen, Zatanna, Karin Grace), Darkseid, Mlle. Marie, Ace Morgan, Doctor Light, Sgt. Rock, 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, Billy Batson (Captain Marvel), Dr. Erdel, Dr. Erdel (in briefing materials), Pres. Dwight D. Eisenhower, Kid Flash (Wally West), Lead, John Jones), Hawkman (Carter Hall), Mister Mxyzptlk, Sinestro, Alanna, Col. Rick Flagg, The Blackhawks, Green Arrow (Oliver Queen), John Henry Irons, Cassius Clay (Muhammad Ali), 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, Barry Allen, Johnny Cloud, Iron), Jess Bright), Capt. Storm, 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 Losers (Gunner, The Flash (Jay Garrick)), Adam Strange (in photo-clipping), Black Manta, Two-Face, Captain Marvel (Billy Batson), Rick Flag, Jr., Joker, Prof Haley), Phantom Stranger, J'onn J'onzz (Martian Manhunter, Brainiac, Blackhawks, Gold, Wonder Woman (Diana Prince), Red Ryan, King Faraday, Hourman (Rex Tyler), Barry Allen (The Flash), Abin Sur, John Jones (J'onn J'onzz, Green Lantern (Hal Jordan), Captain Nathaniel Adam, Sivana, Capt. Nathaniel Adam, Ace Morgan), Gunner, Task Force X (Jess Bright, Lex Luthor, Martian Manhunter, Wonder Woman (Diana Prince) Green Lantern (Hal Jordan), Lois Lane, Aquaman (Arthur Curry), Alfred Pennyworth (Cameo), Carol Ferris, Hawkgirl (Shiera Hol), The Sea Devils, Native American (from early television sign-off image)), Solomon Grundy, Gentleman Ghost, Crystal, Task Force X (Col. Rick Flag, Ted Grant (Wildcat), Gorilla Grodd, Iris West (not pictured), John Henry (John Henry Wilson), Animal Man, Rip Hunter, Doom Patrol (Negative Man (Larry Trainor), Groucho Marx, John Henry, John F. Kennedy (cameo), Martian Manhunter), Rocky Davis, Black Canary (Dinah Drake), Johnny Thunder (western hero, on TV screen), Karin Grace, Edward R. Murrow, Justice Society of America (Green Lantern (Alan Scott), Superman (Clark Kent), Speedy (Roy Harper), Teen Titans (Wonder Girl (Donna Troy), Ray Palmer, Dr. Hugh Evans), Col. Rick Flag, Hal Jordan, Iris West (in photo), Pooch), Vigilante (Greg Saunders), Metal Men (Doc Magnus, Rocky Davis), Selina Kyle (Catwoman), Cheetah, Platinum (Tina), Harry Lieter, Dr. Hugh Evans, also as Wally Wood), Larry Trainor, Theodore Smiesel, also John Jones), J'onn J'onzz (Martian Manhunter), Oliver Queen (Green Arrow), Dwight Eisenhower, June Robbins, Iris West, Mercury, Commissioner Jim Gordon, Butch Luchick, Flash (Barry Allen)
Superhero TeamChallengers of the Unknown