In Better Call Saul, what is the name of Chuck McGill’s former wife?

In Better Call Saul, Chuck McGill’s former wife is named Rebecca Bois.

Rebecca appears in the season-two episode “Chicanery,” which shows an earlier stage of Chuck and Jimmy’s relationship. She is a successful concert pianist and has known Jimmy for years, giving her an unusually personal view of the McGill brothers’ dynamic.

Chuck hides his belief that he has electromagnetic hypersensitivity from Rebecca because he does not want her to see him as ill or vulnerable. During a dinner visit, Jimmy quietly helps Chuck maintain that impression by removing electronic devices from the room. The scene also demonstrates Jimmy’s ability to improvise around Chuck’s condition while concealing the extent of it from others.

Rebecca is played by Ann Cusack. She is sometimes confused with Kim Wexler, Jimmy’s professional partner and later wife, but Rebecca’s connection is to Chuck: she was Chuck’s spouse before the events that dominate the main timeline.