The Other Woman Cast and Characters

Carly Whitten (Cameron Diaz), a New York attorney, has started a relationship with Mark King (Nikolaj Coster-Waldau), a man she's been having sex with for eight weeks. Carly, planning to introduce Mark to her father, Frank (Don Johnson), is upset that Mark has to go out of town on account of a flood at his Connecticut home, missing their dinner. However, she decides to go to his house to seduce him instead. She is horrified to meet Mark's wife, Kate (Leslie Mann), whom she'd originally assumed to be Mark's housekeeper. While initially hostile, both of the women befriend each other. Kate then discovers that he is still seeing another woman, who she thinks is Carly secretly continuing her previous relationship with Mark. After another fight, they discover together that Mark is seeing a third woman.

Carly and Kate follow Mark and travel to The Hamptons, where they stay at the house of Kate’s brother, Phil (Taylor Kinney). The duo spies on Mark and find him with his mistress, Amber (Kate Upton) on the beach, and when Mark leaves for the gym the two women inform her that Mark has been cheating on all of them.

All three women decide to take revenge on him together. Kate spikes his smoothies with estrogen pills to swell his nipples; has their dog lick his toothbrush before soaking it in their toilet; and adds hair-removal cream into his shampoo. Carly spikes his water with a laxative to cause him to defecate heavy diarrhea. Amber uses an ugly drag queen sexual partner against him.

In the course of carrying out the women's vicious pranks, they also discover that Mark has been embezzling money from various startup companies that his workplace helps develop. Meanwhile, Carly begins to connect romantically and feel a bond with Phil. The women’s camaraderie begins to fall apart when Kate finds herself still in love with Mark after sleeping with him again. Carly exposes Mark's fraud before texting him, upsetting Kate and Amber.

Later Mark goes to the Bahamas on a supposed business trip, and Kate decides to follow and expose him. When she arrives she is surprised to find Carly and Amber at the airport, who explain that Mark has been using Kate as the owner of the companies he defrauded from, which would—were his fraud to be discovered—result in Kate and Mark going to prison. Kate also finds out that Mark has been seeing yet another woman, someone he has met on this trip. This, and the possibility of her facing prison, motivates her to take action, with the help of Carly's legal expertise. In addition, Amber confides to Carly that she is seeing someone else as well.

When Mark returns from vacation, he visits Carly at her office. He is then locked in a conference room by her assistant and friend, Lydia (Nicki Minaj), and is stunned to see all three women sitting in there together. They proceed to confront him with his infidelities and embezzlement. With Carly as her attorney, Kate presents divorce papers and a list of their assets. She reveals how she, as a CEO, has returned all of Mark's embezzled money to the companies he had robbed from, which saves both of them from prison time but leaves him bankrupt, much to his shock and hysterical outrage. Mark's business partner, Nick (David Thornton), then arrives and acknowledges Kate’s work while firing him.

The three women all applaud each other, as Mark excuses himself from them, fuming. With his furious anger and rush to leave, he smashes into an empty glass room, which drastically cuts himself and rips his clothes. Afterwards, he then actually finds his car being towed away before also receiving a departing punch in the face from Frank.

In the film's epilogue, Kate takes over Mark's previous job with Nick and is a CEO of several successful companies, making big profits under her honest leadership. Carly and Phil fall in love, and the couple are expecting a child. Amber and Frank are now a couple and are traveling the world together.