Voice actors, one of the most important factors of video games nowadays ^^
I'll pick a male and female.
My very favorite voice actress would be Alésia Glidewell. She did a great job as Krystal in StarFox Assault and Carmelita Montoya Fox in Sly 2: Band of Thieves. Such a pure voice that even fits Samus Aran is Smash Brothers Brawl! 
My favorite voice actor is Richard Horvitz, some of you might recognize him from Ratchet & Clank Future where he is the voice of the Zoni and Pollyx. But I love him most for his job as Zim in the Invader Zim cartoon.