She was a crafty seductive villainess who thought diamonds were a girl's best friend as in the song by Carol Channing.
While Batman and Robin don't go into crimefighting alone, Marsha has some associates that help her in her crimes.
- Aunt Hilda (portrayed by Estelle Winwood) - Marsha's aunt. She is a woman who thinks she is a witch. Aunt Hilda would often use potions that wouldn't work as she hoped.
- Grand Mogul (portrayed by Woody Strode) - Marsha's henchman who assisted Marsha in a plot to get the Bat-Diamond.
- The Penguin - Worked with the Black Bird of Prey on one occassion.
- Marsha, Queen Of Diamonds/Marsha's Scheme Of Diamonds
- Penguin Is A Girl's Best Friend/Penguin Sets A Trend/Penguin's Disastrous End