Board Thread:Speculation House/@comment-14138255-20130802021723/@comment-4830106-20130802030846

CeroWest wrote: That makes u wonder why summer would be so cynical Halsey voice. But Dr. Halsey had sort of a dual personality, as per the books and the Spartan Ops shorts (the canon books, anyway). While she came across as a bitch in Halo Reach and Halo 4, she was actually very kind to the Spartan-II's, especially the Chief. In fact, she was pretty much a mother figure to them.

Back to topic, that's why I think Jen Taylor would voice Summer Rose (because I've already formed Summer's personality in my head). Also, the fact that Jen Taylor voiced the prologue in the opening could also be significant.