Julian is the quintessential villain. He's manipulative, controlling, and just downright rude. He also has a large ego. Risa encounters the Julians in part two of Future, and she immediately gets a bad vibe from him. Her vibe turns out to be correct... but I won't give away any more than that!
Juliana is his sister. She falls into the quiet role, but she's got brains. She's smart enough to know to leave Julian's male ego alone, and she knows better than to disagree with him on anything. But she isn't happy working with her brother. Who would be? Will she defect? Will she abandon him? Nope, not giving that away either. Read it!
To find out what happens and to see Julian and his sister in action, read Future? Part two back to the Future? picture gallery.