Sandra Green (Marlo Thomas): Rachel's overprotective mother. In "The One with the Lesbian Wedding", she announces to Rachel that she never loved Rachel's father and is divorcing him. ("You didn't marry your Barry, honey—but "I" married "mine".") She later accompanies everyone to Carol and Susan's wedding. In "The One with the Two Parties", she arrives at Rachel's birthday party and is unaware for the whole night that her ex-husband is also there, as the six friends successfully prevent them from finding out each other are there by setting up two different parties, bemusing them both with their strange, wacky behavior in the process; Joey even ends up kissing Sandra to distract her from her ex-husband's departure. In "The One with the Baby Shower", she is invited at the last minute to attend Rachel's baby shower, where she offers to move in with Ross and Rachel to help with the baby's first months; Rachel first accepts, then Ross makes her change her mind. When Rachel was planning to move to Paris, Sandra would fly out with Emma a few days later. However this never happens as Rachel chooses to remain in New York with Ross, becoming his mother-in-law after Ross and Rachel remarry.