Sister Princess/Trivia
- Hey, It's That Voice!
- Dub!Yamada, played by Greg Ayres... who plays similar characters like Shinji Kazama, Jun Kitagawa, Leo Kakinoki, and Yuuya Asou.
- Tiffany Grant, who plays the part-German Haruka, is well-known as the voice of another part-German character, Asuka Langley Sohryu.
- Karen is played by the ever-childlike voice of Hilary Haag.
- Shout-Out: Yotsuba occasionally dons a deerstalker hat to go with her magnifying glass. Her regular outfit, as seen above (she's second from the left), could be construed as a tweenage girl's version of Holmes' "traditional" caped coat look.