Bianca
Bianca is Jack Donaghy's ex-wife, whose years of marital bliss with the network exec weren't all that rosy, since Jack's mother never liked her from the beginning. She was first introduced in Season 1, Episode 12 and had her second and most recent appearance in the following episode. As of her last appearance, she is engaged to a man named Vincent Foley and in Season 1, Episode 13 she finalised her divorce with Jack (although they had been legally separated since 1989). Jack mentioned that she was too much of a woman for him which is why they divorced. Bianca is able to tolerate most of Jack's meaningless affairs but she seems to have a jealous streak towards women who can actually make Jack happy, as evidenced by Liz pretending to be Jack's fiancée, which resulted in Bianca attacking her at the event.
Bianca is portrayed by Isabella Rossellini.
Bianca is portrayed by Isabella Rossellini.