Challenger is a science fiction fanzine by Guy H. Lillian III.
Challenger is published in Shreveport, Louisiana, U.S.A.
Contributors of writing include James Bacon (Journey Planet), Greg Benford, Warren Buff, Richard Dengrove, Dennis Dolbear, Kurt Erichson, Mike Estabrook, Chris Garcia (The Drink Tank), Alexis Gilliland, Mike Glyer (File 770), Joseph Green, Mary Ann van Hartesveldt, Laura Haywood-Cory, Craig Hilton, Rose-Marie Lillian, Nicki Lynch (Mimosa), Rich Lynch (Mimosa), Joseph Major (Alexiad), Julia Morgan-Scott, Evelyn Nelson, Cathy Palmer-Lister (Warp), Curt Phillips, John Purcell (Askance), Mike Resnick, Gary R. Robe, Lezli Robyn, Steven Silver (Argentus), Olivia Spooner, Shelby Vick (Confusion), Taral Wayne (DNQ), Susan Whitmore, John Widmer, Charlie Williams,
Controbutors of art work include Elizabeth Atkinson, Sheryl Birkhead, Kayla Callahan, Randy Cleary, Liz Copeland, Kurt Erichsen, Brad Foster, Dany Frolich, Alexis Gilliland, Alan Hutchinson, Frank Kelly-Freas, Julia Morgan-Scott, Peggy Ranson, William Rotsler, Steve Stiles, Taral Wayne, Charlie Williams, Wally Wood, and Patricia Yeates.
Covers have been by Sheryl Birkhead, Brad Foster, Frank Kelly-Freas, Ken Mitcheroney, Susan Russell, Taral Wayne, Alan White.