Disguised as the Devil, Dr. Clever is the most inveterate Golden Age
adversary of Johnny Quick!
| Issue | Comment | Reprinted in |
| More Fun #74 | 1st Appearance, vs. Johnny Quick | |
| More Fun #76 | vs. Johnny Quick | Wanted: The World's Most Dangerous Super-Villains #7 |
| More Fun #78 | vs. Johnny Quick | |
| More Fun #89 | vs. Johnny Quick |