<P> Meanwhile, in the frowzy Upper West Side apartment of divorced sportswriter Oscar Madison (Walter Matthau) on a hot and sticky summer evening, Oscar and his buddies Speed (Larry Haines), Roy (David Sheiner), Vinnie (John Fiedler), and policeman Murray (Herb Edelman) are playing poker and discussing their friend, Felix Ungar, who is unusually late for the game . Murray's wife calls and tells him that Felix is missing . Oscar then calls Felix's wife Frances who says that she and Felix have split up . As they are discussing what to do, and worried that Felix might try to commit suicide, Felix arrives not knowing that his friends already know that his wife has kicked him out of the house . </P> <P> Felix eventually breaks down crying and his friends try to console him . Oscar then suggests that Felix move in with him, since Oscar has lived alone since he split up with his own wife, Blanche, several months earlier . Felix agrees, and urges Oscar to not be shy about letting him know if he gets on Oscar's nerves . </P> <P> Within only a week, Oscar is going nuts . Felix is a neurotic, obsessive - compulsive nut, who runs around the apartment cleaning, picking up after Oscar, and berating him for being such a slob . He also refuses to have any fun, spending most of his time thinking about Frances . Felix at one point even telephones Oscar at Shea Stadium telling him not to eat any hot dogs at the game, because Felix is preparing franks and beans for dinner; this distraction causes Oscar to miss seeing a rare triple - play at the Mets game on which he is reporting . The two men are shown bowling, shooting pool, and walking the city streets . Felix has a sinus attack, making loud obnoxious noises while seated in a coffee shop . Finally, after Felix drives everyone at the weekly poker game crazy, Oscar convinces Felix to lighten up and join him on a double - date with two English girls who live in the building--the Pigeon sisters, Cecily (Monica Evans) and Gwendolyn (Carole Shelley), who actually "coo" when they laugh . </P> <P> As the date commences, Oscar tries to get Felix to loosen up by leaving him alone for a while in their living room with the two attractive, and somewhat frisky, sisters . Instead, he winds up talking about Frances, and breaks down weeping . When Oscar returns from their kitchen, the Pigeon sisters, one a divorcee, the other widowed, are sobbing as uncontrollably as Felix . Oscar cheers them up and they invite the boys upstairs for what should be a wild night . Instead, Felix, who realizes that he is still too attached to his wife, refuses to go, opting to "scrub the pots and wash his hair" instead . Oscar joins the sisters in their apartment, but winds up spending the night drinking tea and telling them all about Felix . </P>

Who played the pigeon sisters on the odd couple