CharacterRobotman (Cliff Steele), Viking Prince, Hourman, Jess Bright, 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], Sarge, Starro, Walter Cronkite, Dr. Fate (Kent Nelson), Jack Ryder, Wildcat, J'onn J'onzz (John Jones), Iris Allen, Zatanna, Karin Grace), Darkseid, Mlle. Marie, Ace Morgan, Sgt. Rock, Doctor Light, Doctor Fate (Kent Nelson), Hawkman (Katar Hol), Hawkgirl (Shiera Sanders), Hour-Man (cameo), Bonnie Baxter, Vice Pres. Richard Nixon, Challengers of the Unknown (Prof Haley, Dr. Charles McNider (Dr. Mid-Nite), Robin (Dick Grayson), Chuck Yeager, Star Sapphire, Billy Batson (Captain Marvel), Dr. Erdel, 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, Hal Jordan (Green Lantern), Supergirl (Kara Zor-El), 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), Capt. Storm, Chief (Niles Caulder), Roy Raymond (referred to in Iris' article), Green Lantern (Hal Jordan) (Cameo), Atom (Ray Palmer), The Losers (Capt. Storm, Dinah Drake (Black Canary), Prof Haley, Dr. Mid-Nite (Charles McNider), Catwoman (Selina Kyle) (cameo), The Flash (Jay Garrick)) (all in cameo), Jimmy Olsen, Metamorpho (Rex Mason), The Losers (Gunner, Tom Kalmaku, 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, Gold, Blackhawks, Wonder Woman (Diana Prince), Red Ryan, Hourman (Rex Tyler), 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), Alfred Pennyworth (Cameo), Carol Ferris, 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, Iris West (not pictured), Gorilla Grodd, Animal Man, Ted Grant (Wildcat), John Henry (John Henry Wilson), 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), Teen Titans (Wonder Girl (Donna Troy), Speedy (Roy Harper), Ray Palmer, Dr. Hugh Evans), Col. Rick Flag, Hal Jordan, Pooch), Iris West (in photo), Vigilante (Greg Saunders), Metal Men (Doc Magnus, Selina Kyle (Catwoman), Rocky Davis), Platinum (Tina), Cheetah, 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