Meme answers!

First, the list, planned in advance and randomized through random.org because I can:

1. Iroh (Avatar: the Last Airbender)
2. Gaius (BBC Merlin)
3. Mei Chan (Fullmetal Alchemist)
4. Alex Armstrong (Fullmetal Alchemist)
5. Katara (Avatar: the Last Airbender)
6. Prowl (Transformers: Animated)
7. Ema Skye (Ace Attorney)
8. Amy Pond (Doctor Who)
9. Starscream (Transformers G1)
10. Luna Lovegood (Harry Potter)
11. Skyfire (Transformers G1)
12. Gwen (BBC Merlin)
13. Donna Noble (Doctor Who)
14. Alphonse Elric (Fullmetal Alchemist)
15. Optimus Prime (Transformers: Animated)

( And now, the answers! )