Alan Kupperberg

Marvel What If? (Publication Order) #23

Mark Gruenwald, Steve Skeates, Peter B. Gillis with Herb Trimpe (Illustrator), Al Milgrom (Illustrator), Ron Wilson (Illustrator), Alan Kupperberg (Illustrator), John Buscema (Illustrator)

Marvel What If? (Publication Order) #29

Michael Golden with Ron Wilson, Peter B. Gillis, Alan Kupperberg, Steven Grant, Rich Buckler

Steven Grant with Ron Wilson, Rich Buckler, Alan Kupperberg, Peter B. Gillis

David Michelinie with Alan Kupperberg, Paty Cockrum, Rich Margopoulos, Dan Reed

Marvel What If? (Publication Order) #8

Donald F. Glut with Alan Kupperberg, Mary Ellen Beveridge, I. Watanabe, Jim Mooney, Scott Shaw, Karin, Klaus Janson, Gil Kane

What If? Classic #2

Jim Shooter, Jim Craig, Donald F. Glut, Roy Thomas with Sal Buscema (Illustrator), Rick Hoberg (Illustrator), Alan Kupperberg (Illustrator), Jack Kirby (Illustrator)

Danny Fingeroth with Roger Stern, Alan Weiss, John Byrne, Arvell Jones, Bill Mantlo, David Anthony Kraft, Dan Reed, John Romita Sr., Greg LaRocque, Rich Margopoulos, Alan Kupperberg, Alan Zelenetz, Don Perlin, Tom DeFalco, Frank Miller, Steven Grant, Paty Cockrum, Mike Vosburg, David Michelinie, Steve Ditko

What If? Classic #5

Mark Gruenwald, Bob Layton, Michael Fleisher, Roger Stern, Al Gordon, Rich Margopoulos, Steven Grant, Pablo Marcos, Jerry Bingham, Bob Budiansky, Tom Sutton, Frank Miller, Joe Sinnott, Jim Mooney, Rich Buckler, Bill Flanagan, Bruce Patterson, Peter B. Gillis, Jo Duffy, Bill Mantlo, Mike W. Barr, Greg LaRocque, Alan Kupperberg

What If? Classic #6

David Anthony Kraft, Alan Weiss, Roger Stern, Steven Grant, David Michelinie, Tom DeFalco, Danny Fingeroth, Frank Miller, John Byrne, Richard Margopoulos, Bill Mantlo, Alan Kupperberg, Alan Zelenetz with Arvell Jones (Illustrator), Mike Vosburg (Illustrator), Don Perlin (Illustrator), Paty Cockrum (Illustrator), Greg LaRocque (Illustrator), Dan Reed (Illustrator), Steve Ditko (Illustrator)

John Byrne with David Anthony Kraft, Bob Hall, Ron Wilson, Mark Gruenwald, Tom DeFalco, David Michelinie, Bill Mantlo, Michael Golden, Sal Buscema, Marc Silvestri, Alan Weiss, Butch Guice, Rich Margopoulos, Alan Zelenetz, Kelley Jones, Alan Kupperberg, Paty Cockrum, Mike Vosburg, Dan Reed, Peter B. Gillis, Arvell Jones, Ron Frenz