Sturgis Butterfield
Mr. Muscle; Flex; Brother Bicep; Mighty Mike; Mr. Mighty
- Also known as
Sturgis Butterfield was a member of Hero Hotline who was constantly changing his superhero code name.
Appearances
- Action Comics Weekly #637 — 1989-01-31
- Action Comics Weekly #638 — 1989-02-07
- Action Comics Weekly #639 — 1989-02-21
- Action Comics Weekly #640 — 1989-02-28
- Superman #29 — 1989-03-00
- Adventures of Superman #452 — 1989-03-00
- Action Comics Weekly #641 — 1989-03-07
- Action Comics Weekly #642 — 1989-03-14