CharacterRobotman (Cliff Steele), Viking Prince, Blackhawk (Bart Hawk), Hourman, Vandal Savage, 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), Challengers of the Unknown (Red Ryan, Spectre (Jim Corrigan), 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, 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), Lead, John Jones), Hawkman (Carter Hall), Mister Mxyzptlk, Alanna, Sinestro, 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, Steve, June Robbins), 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, Catwoman (Selina Kyle) (cameo), Dr. Mid-Nite (Charles McNider), The Flash (Jay Garrick)) (all in cameo), Metamorpho (Rex Mason), Jimmy Olsen, The Losers (Gunner, Tom Kalmaku, The Flash (Jay Garrick)), Adam Strange (in photo-clipping), Black Manta, Two-Face, Joker, Captain Marvel (Billy Batson), Rick Flag, Jr., 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), Carol Ferris, Hawkgirl (Shiera Hol), Alfred Pennyworth (Cameo), 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), Animal Man, John Henry (John Henry Wilson), Iris West (not pictured), Gorilla Grodd, 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, Superman (Clark Kent), Justice Society of America (Green Lantern (Alan Scott), Teen Titans (Wonder Girl (Donna Troy), Speedy (Roy Harper), Dr. Hugh Evans), Ray Palmer, Hal Jordan, Col. Rick Flag, Pooch), Iris West (in photo), Vigilante (Greg Saunders), Metal Men (Doc Magnus, Rocky Davis), Selina Kyle (Catwoman), Cheetah, Platinum (Tina), Harry Lieter, Dr. Hugh Evans, also as Wally Wood), Theodore Smiesel, Larry Trainor, J'onn J'onzz (Martian Manhunter), also John Jones), Oliver Queen (Green Arrow), Dwight Eisenhower, June Robbins, Iris West, Mercury, Commissioner Jim Gordon, Butch Luchick, Flash (Barry Allen)
Superhero TeamChallengers of the Unknown