In this episode, Oscar (Matthew Perry) tries out online dating, and ends up going out with Felix's ex-wife by mistake. Something similar happened in Gloria, Hallelujah (1972) , an episode of The Odd Couple (1970) TV series.
Christine Woods plays Ashley, Felix's (Thomas Lennon) ex-wife. She also played Matthew Perry's former (deceased) wife in Go On (2012).
Lindsay Sloane (Emily) and Wendell Pierce (Teddy) previously worked together on Horrible Bosses (2011).