Princess Maru - A Japanese Chemist and inveterate foe of Wonder
Woman
| Issue | Comment | Reprinted in |
| Sensation #2 | 1st Appearance, vs. Wonder Woman | Wonder Woman Archives #1 |
| Sensation #24 | vs. Wonder Woman | Wonder Woman Archives #3 |
| Wonder Woman #28 | joins Villainy Inc, vs. Wonder Woman | Adventure Comics #416, Wonder Woman Annual #1 (1967) |