Board Thread:The Reference Desk/@comment-4139960-20130614154816/@comment-26975268-20130615140657

John Barrowman, Eve Myles, Mekhi Phifer, Alexa Havins, Kai Owen and Bill Pullman made it to the titles sequence, and are omitted at the end.

Here's everything from our cast list that apparently didn't make it to either credits: So, a few guest characters that are in past and/or probably future credits, which would explain how we know their actors.
 * Anwen Williams - Unknown
 * Dr. Vera Juarez - Arlene Tur
 * Noah Vickers - Paul James
 * Alexander Peterssen - Brian Guest
 * Geraint Cooper - William Thomas
 * Mary Cooper - Sharon Morgan
 * Andy Davidson - Tom Price
 * Charlotte Wills - Marina Benedict