Cidney isn't a playable character either though?
Noctis and his hatchback Brosephs are all the playable characters as the devs have stated in the interviews so far.
As for the old guys, just use the Fifteen skin on this site and examine the guy to the left of Stella, the guy to the right of Noctis and the guy to the right of Assassin's Creed Assassin Man. I believe it is those characters that ToriJ was referring too, showing that SQEX are more than capable of designing older characters that are integral to the story.