Lilithian

Lilithian was the daemon spirit of Jedi/Sith. She was a silver serpent, representing Dooku's cunning, guile, and Jedi wisdom.

Lilithian was Dooku's only true friend growing up after his experiences with Lorian Nod caused him to become wary of friendship. She helped him realize the wisdom of not always conforming to the voices of the crowd, resulting in his becoming a very charismatic Jedi. However, she also believed that he had to embrace his dark feelings as well as his good ones, encouraging him to leave the Jedi Order and embrace Darth Sidious' Sith Order. As a Sith daemon, Lilithian used her silken voice to advise Dooku/Darth Tyranus on how to best fulfill his master's wishes, and to scare his subordinates. When Anakin Skywalker killed Dooku, Lilithian fell into nothingness with him.