NCIS: Origins allows the hit franchise to tell the stories of characters fans know well before they met them. The prequel takes place in the ’90s — the finale sees the agency go from NIS or NCIS — and follows Gibbs (Austin Stowell, Mark Harmon) in his early days on Franks’ (Kyle Schmid, Muse Watson) team and working alongside Vera (Diany Rodriguez, Roma Maffia). The series has also introduced young versions of Fornell (Lucas Dixon, Joe Spano) and Pride (Shea Buckner, Scott Bakula) and brought in Adam Campbell as the younger Ducky (David McCallum). So, who could be next?

“I really wanted to see a young Gary Callahan, but we did that,” showrunner David J. North remarked while discussing the Season 2 finale with TV Insider.

Originally published on tvinsider.com, part of the BLOX Digital Content Exchange.