Aimee Mann is an American rock singer, songwriter, guitarist, and bassist. She voices Opal in the episode "Giant Woman".
Her character, Opal, has appeared three times in the series (even though Aimee Mann only voiced her once so far) - the second time being in "The Return", and the third being in "Log Date 7 15 2".
- Aimee Mann is one of Rebecca Sugar's greatest musical inspirations. This is most likely the reason she was acquired to voice the character Opal.
- Mann's song "It's Not" from her 2002 album Lost in Space has been noted as one of Rebecca's biggest inspirations for creating comics and cartoons themed around space.