The others were Adam Baldwin (Jayne Cobb in Firefly) who played Colonel Dave Dixon, and Morena Baccarin (Inara Serra in Firefly) who played Adria. Executive producer Martin Gero created the character of Jennifer Keller while writing ``First Strike''. The producers decided to cast Jewel Staite for the role as Keller after they enjoyed working with her previously as Ellia in ``Instinct''.
Jewel Staite
Keller