2003 debuts
This is a list of characters who debuted in 2003.
- Anastasia Dualla
- Azazel (mutant)
- Beatrix Kiddo
- Bill Adama
- Billy Keikeya
- Brian Gelber
- Brock Samson
- Cally Henderson
- Caprica Six
- Chris Thorndyke
- Christmas Eve
- David Alleyne
- Dean Venture
- Denny Philips
- Eva Khatchadourian
- Galen Tyrol
- Grim (reaper)
- Guruk Dolim
- Hank Venture
- Jarem Kaz
- Kara Thrace
- Karl Agathon
- Kate Monster
- Kent of Lycia
- Laura Roslin
- Laurie Collins
- Lee Adama
- Lyndis
- Malcolm Fitzcarraldo
- Mark (tactician)
- Michael Bluth
- Molly Hernandez
- Mor glasch Tev
- Narsanyala Jannar
- Nicky Lyon
- Nils (manakete)
- Ninian (manakete)
- Odd Thomas
- Pete White
- Phyla-Vell
- Princeton Whitty
- Raven Baxter
- Rennan Konya
- Rod Tartaglia
- Rusty Venture
- Ryuk
- Saul Tigh
- Sheila Smith
- Thomas Elliott
- Victor Borkowski
- Will Turner
- Wil of Lycia
- Yagami Light
