Diana confirmed Juliet's appointment for Mittelos Bioscience over her cell phone. She is never seen on-screen.
Juliet [into cell phone]: Hello.
Diana: Dr. Burke?
Diana: This is Diana from Mittelos Bioscience. I'm calling to confirm your appointment tomorrow.
Juliet: Two o'clock, right?
Diana: Two o'clock. Dr. Alpert asked me to tell you that he's very much looking forward to meeting you.
Juliet: Me too. Thank you.
- For fan theories about these unanswered questions, see: Diana/Theories
- Is she an Other?