(MLP; EG) The Dazzlings - FINAL SEASON - Sunset Shimmer & Applejack VA Needed!
imshadow007 for Starlight/Starfaire
Starlight has DID (Dissociate Identity Disorder). In this series, although she has multiple, there are two main personalities: Starlight and Starfaire.
Starlight is a meek and timid character, who does what she's told, but only out of fear for her safety.
Starfaire is a malicious and meticulous character, who strongly believes in equality, but is approaching the belief in the wrong way.
Although they are different personalities, there is not much of a voice difference. However...
Starfaire has a more assertive voice and attitude, while Starlight has a quiet and uncertain attitude.
The voice for this character should be similar to her original voice in My Little Pony; Friendship is Magic, but also be similar to the previous voice actor's (See video above for examples)
[Starlight; trying to compromise while avoiding conflict] (nervous and wary) D-do you want me to get... more sirens?
[Starfaire; observing magic with an evil intention] (smug, intrigued) Well, well, well. That's a lot of magic you have there~.
[Starlight; fed up with being under another's control] (terrified, angry) I don't want to be a part of this anymore!