The main cast members of Choo-Choo Soul are:
* Shaquille "Shaq" O'Neal: The larger-than-life former NBA star who provides the voice for the show's main character, the friendly Conductor.
* Genevieve Goings: Known for her stage name "G", Genevieve is the voice and the live-action performer for the energetic Choo-Choo.
There are also various guest stars and musicians who appear on the show.
I hope this helps! Let me know if you have any other questions.