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Humpty Dumpty is the seventh episode of the sixth season of ER, and the one hundred twenty-first episode overall.
Starring: Anthony Edwards (Dr. Mark Greene), Noah Wyle (Dr. John Carter), Julianna Margulies (Nurse Carol Hathaway), Laura Innes (Dr. Kerry Weaver), Alex Kingston (Dr. Elizabeth Corday), Kellie Martin (Dr. Lucy Knight), Paul McCrane (Dr. Robert Romano), Goran Visnjic (Dr. Luka Kovac), Michael Michele (Dr. Cleo Finch), Erik Palladino (Dr. Dave Malucci)
Special Appearance by: Alan Alda (Dr. Gabe Lawrence)
Guest Starring: Rosalind Chao (Dr. Chao), Yvette Freeman (Haleh Adams), Carl Gordon (Mr. Owens), Roxanne Hart (Mrs. Kottmeier), Emile Hirsch (Chad Kottmeier), Leo Rossi (Det. Cruson), Conni Marie Brazelton (Conni Oligario), Laura Cerón (Chuny Marquez), Deezer D. (Malik McGrath), Stephanie Dunnam (Dr. McLucas), Erica Gimpel (Adele Newman), Scott Jaeck (Dr. Steve Flint), Lily Mariye (Lily Jarvik), Chris Ufland (Mr. Perry), Gedde Watanabe (Yosh Takata)
Co-Starring: Michelle Bonilla (Harms), Karole Graham (Ankle Patient), Lynn A. Henderson (Olbes), Brenda Isaacs-Booth (Sandra Perry), Myles Killpatrick (Little Kid), Jeannie Lee (Nurse Vivian), Maria McCann (Babette Fritzler), Chad McKnight (Officer Wilson), Bob Minor (Officer Jenkins), Katharine Mitchell (Incident Commander), Marilyn Sue Perry (Nurse Rogers), Carey Peters (Accident Victim), Rick Schatz (Max Fritzler), Meg Thalken (McManus), Emily Wagner (Pickman), Gregory Lance Williams (Rescue Worker)
Corday coerces a confession from an injured man who is revealed to have kidnapped & raped a woman; Lucy tries to prevent the leader of a gospel group from leaving the hospital against medical advice; Cleo treats a teenage boy who is an alcoholic; Carol spends the day answering phones, but after fainting at work, she is put on bed rest; as Dr. Lawrence prepares to leave County General, he uses his expertise to save a patient's life.