New mom Angie Harmon is set to make an appearance in Christina Applegate's TV series Samantha Who?.

The former Law & Order actress will make a cameo in the comedy show, with the view to her character becoming a permanent fixture in future episodes. Harmon will star as Gigi, the ex-wife of Samantha's current partner, played by Billy Zane, according to Entertainment Weekly.

The ABC Network is due to announce the air date for the new series in the coming days.

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(This news article provided by World Entertainment News Network)