volume one

• Medusa
• Crystal
• Luke Cage (Power Man)
• Jennifer Walters (She-Hulk)
• Crystal, became a member once again in Englehart's run when Reed and Sue stepped out temporarily
• Sharon Ventura (Ms. Marvel / She-Thing), also joined shortly after Crystal
• Lyja the Laserfist
• Kristoff Vernard
• honorable mentions
  • in a couple of issues, Spider-Man, Hulk, Wolverine, and Ghost Rider form a temporary "new Fantastic Four" when the actual FF are incapacitated
  • Ant-Man (Scott Lang) is employed by Sue for his technical prowess and joins them on a number of missions, but it is always as an "employee" rather than an officially recognized member