- Roy Thomas; Len Wein
- John Buscema
- Frank Giacoia
- Mike Stevens
- The Avengers [Thor; Scarlet Witch; Black Panther; Goliath [Clint Barton]; Quicksilver; Vision; Black Knight [Dane Whitman]]; Spider-Man [Peter Parker]; Squadron Supreme [Nighthawk; Lady Lark; Hawkeye [Golden Archer]; Tom Thumb; American Eagle; Dr. Spectrum; Hyperion; Whizzer] (introduction)
- The Avengers battle Brain-Child. The Squadron Supreme, a good version of the Squadron Sinister, help them out.
Len Wein credit per Roy Thomas in his introduction to Marvel Masterworks: The Avengers #9.
Continued next issue.