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People You Forgot Guest Starred on ER

Updated October 13, 2018 14.6k views15 items
ER had a brilliant run that lasted 15 seasons and 331 total episodes from 1994-2009. The show had its fair share of successful actors and actresses in the main cast, including George Clooney, Mekhi Phifer, and Noah Wyle, to name a few. Along the way, there was also plenty of famous people on ER making cameos and guest appearances throughout the years. Now, years removed from the series, with so many episodes in the foggy part of your memory bank, it’s quite a surprise to see some of the stars who had guest appearances on ER.
  • Zac Efron
    Video: YouTube

    Episode: Dear Abby
    Role: Bobby Neville

    On the third episode of ER’s 10th season, a lot is going on, but almost lost in all of the action if you don’t play close attention is a very young Zac Efron, who dies on the operation table.

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  • Shia LaBeouf
    Video: YouTube
    Episode: Abby Road
    Role: Darnel Smith

    In the 12th episode of season six, Shia has a guest appearance as a boy who is in the hospital after getting in a fight at school. Shia’s character Darnel has muscular dystrophy, and you might just be blown away by LaBeouf’s performance. He does so well in one particular scene that involves tears, it might just coax some out of your own eyes. 

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  • Emile Hirsch
    Photo: NBC

    Episode: Humpty Dumpty
    Role: Chad Kottmeier

    We first see Hirsch as Chad on the seventh episode of season six, playing a teenage alcoholic with an alcoholic mother who can’t seem to grasp her or her son’s problem. Hirsch appears as this character again on the season six episode, “How the Finch Stole Christmas.”

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  • Kirsten Dunst
    Video: YouTube

    Episode: Ghosts
    Role: Charlie Chiemingo

    Dunst was in multiple season three episodes, first appearing in the fifth episode as a street youth who meets Dr. Ross and Nurse Hathaway on a mobile health van that goes to County General when Southside closes. She has an infant with her and claims to be the baby's mother, but it’s evident she’s lying. It turns out the infant needs surgical treatment, but she disappears and Ross can’t find her. She doesn’t return until five episodes later, on “Homeless for the Holidays,” and she would appear three times after than, concluding her story arc on the 22nd episode, “One More for the Road.

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