CharacterRobotman (Cliff Steele), Viking Prince, Hourman, Blackhawk (Bart Hawk), Jess Bright, Vandal Savage, 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], 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, Doctor Light, Sgt. Rock, 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), 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), 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, Adam Strange (in photo-clipping), The Flash (Jay Garrick)), Black Manta, Two-Face, Captain Marvel (Billy Batson), Joker, 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), Alfred Pennyworth (Cameo), Hawkgirl (Shiera Hol), Carol Ferris, 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, Animal Man, Iris West (not pictured), 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), Dr. Hugh Evans), Ray Palmer, Col. Rick Flag, Hal Jordan, Iris West (in photo), Pooch), Metal Men (Doc Magnus, Vigilante (Greg Saunders), Selina Kyle (Catwoman), Rocky Davis), 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), Dwight Eisenhower, June Robbins, Iris West, Mercury, Commissioner Jim Gordon, Butch Luchick, Flash (Barry Allen)
Superhero TeamChallengers of the Unknown