Star Trek: Enterprise Observer Effect (Season 4, Episode 11)
TV-PG
TV Episode | 43 min | Action, Adventure, Drama

Star Trek: Enterprise

Observer Effect (Season 4, Episode 11)

TV-PG

TV Episode | 43 min | Action, Adventure, Drama

Noncorporeal aliens inhabit the bodies of Enterprise crew members to study how the crew reacts to a lethal virus infection that has afflicted Trip and Hoshi.

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Cast	+ Add Cast
9 cast members

Name	Known for
Scott Bakula Capt. Jonathan Archer Capt. Jonathan Archer See fewer	Quantum Leap (1989)
John Billingsley Dr. Phlox Dr. Phlox See fewer	The Man from Earth (2007)
Jolene Blalock Cmdr. T'Pol Cmdr. T'Pol See fewer	Star Trek: Enterprise (2001)
Dominic Keating Lt. Malcolm Reed Lt. Malcolm Reed See fewer	Beowulf (2007)
Anthony Montgomery Ensign Travis Mayweather Ensign Travis Mayweather See fewer	Star Trek: Enterprise (2001)
Linda Park Ensign Hoshi Sato Ensign Hoshi Sato See fewer	Bosch (2014)
Connor Trinneer Cmdr. Charles 'Trip' Tucker III Cmdr. Charles 'Trip' Tucker III See fewer	Star Trek: Enterprise (2001)
Solomon Burke Jr. Ensign Billy (uncredited) Ensign Billy (uncredited) See fewer	White Oleander (2002)
Evan English Ensign Tanner (uncredited) Ensign Tanner (uncredited) See fewer	Star Trek: Enterprise (2001)