Fringe

Lysergic Acid Diethylamide (Season 3, Episode 19)

TV-14

TV Episode | 60 min | Drama, Mystery, Sci-Fi

With the latest estimate that the team has only one day to save Olivia's consciousness, Walter leads a group on an LSD trip into Olivia's mind.

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Cast	+ Add Cast
15 cast members

Name	Known for
Anna Torv Olivia Dunham / William Bell Olivia Dunham / William Bell See fewer	Fringe (2008)
Joshua Jackson Peter Bishop Peter Bishop See fewer	Fatal Attraction (2023)
Lance Reddick Phillip Broyles Phillip Broyles See fewer	John Wick (2014)
Blair Brown Nina Sharp Nina Sharp See fewer	The Days and Nights of Molly Dodd (1987)
Jasika Nicole Astrid Farnsworth Astrid Farnsworth See fewer	Fringe (2008)
John Noble Dr. Walter Bishop Dr. Walter Bishop See fewer	The Lord of the Rings: The Return of the King (2003)
Ryan McDonald Brandon Fayette Brandon Fayette See fewer	Bad Blood (2017)
Ulrich Thomsen Man in Zeppelin, aka Mr X Man in Zeppelin, aka Mr X See fewer	The Celebration (1998)
Leonard Nimoy Dr. William Bell (voice) Dr. William Bell (voice) See fewer	Star Trek IV: The Voyage Home (1986)
Marina Allen Nurse #1 Nurse #1 See fewer	Fringe (2008)
Chris Bradford Olivia's Stepfather Olivia's Stepfather See fewer	Fringe (2008)
Ada Breker Young Olivia Young Olivia See fewer	Frequency (2016)
Lee Majdoub Paramedic Paramedic See fewer	Sonic the Hedgehog 3 (2024)
John Emmet Tracy ER Doctor ER Doctor See fewer	Yellowstone (2018)
Ania Markiewicz Young Olivia's Mother (uncredited) Young Olivia's Mother (uncredited) See fewer	Entanglement (III) (2017)