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Be Patient is the fifteenth episode of the sixth season of ER, and the one hundred twenty-ninth episode overall.
Guest Stars: Rachel Crane (Terri), Ellen Crawford (Lydia), Cara DeLizia (Andrea), Christopher Rich (Ron Perth), Gwynyth Walsh (Barbara Knight), Andrew Bowen (Andrew), Conni Marie Brazelton (Conni), Laura Ceron (Chuny), Deezer D. (Malik), Jackie Debatin (Judy), Kayli DeGregorio (Laura Williams), Kelsi DeGregorio (Laura Williams), Harry Hutchinson (Hit-and-Run Driver), Scott Jaeck (Dr. Steve Flint), Lily Mariye (Lily), Jeris Lee Poindexter (Nate), Gedde Watanabe (Yosh), John Cullum (David Greene), Judy Parfitt (Isabelle Corday), Morgan Bowen (Denise Williams), Mark Hicks (Physical Therapist), Brian Lester (Dumar), Casey Lewis (Tom), Nancy Loller (Elderly Woman), Patrick J. Pieters (Doorman), Anthony Wikter (Teenage Boy), Clifton Williams (Postman)
Luka witnesses a hit-and-run accident which injures a little girl and instead of waiting for the paramedics, he takes the girl to the ER himself; Carol learns that a 14-year-old girl has cervical cancer who doesn't want her parents to know about it; as Carter recovers from being stabbed, he gets a visit from Lucy's mother who asks him how it felt for him when he was attacked; Abby suspects a patient with hemorrhoids is more sicker than he looks; Corday is surprised when she discovers Mark's father, David having breakfast with her mother; meanwhile, Mark learns that David is terminally ill.