Cyren Ambrose is an old friend of Jack 's. They used to run together along with a man named Murtock.

Cy is a tech expert and assassin with a playful energy. Her philosophy is if it's not fun it's not worth doing.

She recently came aboard the John Shepard 's Normandy with Jack and the two have maintained a strained relationship. Their past is complicated, but Cy isn't shy about spilling the beans.