The Flash Therefore She Is (Season 4, Episode 20)
TV-PG
TV Episode | 42 min | Action, Adventure, Drama

The Flash

Therefore She Is (Season 4, Episode 20)

TV-PG

TV Episode | 42 min | Action, Adventure, Drama

Barry and Team Flash team up with Gypsy to try to thwart Thinker's plan. Meanwhile, Cisco and Gypsy have a heart to heart talk about their relationship.

Showrunner

Todd Helbing

Director

Rob Greenlea (as Rob J. Greenlea)

Writers

Greg Berlanti (developed by) | Andrew Kreisberg (developed by) | Geoff Johns (developed by) | Sterling Gates (written by) | Thomas Pound (written by)

Producers

Jonathan Butler | Geoff Garrett | Gabriel Alejandro Garza (as Gabriel Garza) | Todd Helbing & 2 more

Composers

Nathaniel Blume | Blake Neely

Cinematographer

Alwyn Kumst

Editor

Mike Jackson (edited by)

Casting Directors

Lyndsey Baldasare | David Rapaport (as David H. Rapaport)

Production Designer

Troy Hansen

See all filmmakers & crew (209)

Edit Released

Updated May 1, 2018

Release date

May 1, 2018 (United States)

Awards

Series awards

Nominated for 1 Primetime Emmy Award. Another 31 wins & 98 nominations

Contacts

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Cast	+ Add Cast
15 cast members

Name	Known for
Grant Gustin Barry Allen / The Flash Barry Allen / The Flash See fewer	The Flash (2014)
Candice Patton Iris West-Allen Iris West-Allen See fewer	The Flash (2014)
Danielle Panabaker Caitlin Snow Caitlin Snow See fewer	The Flash (2014)
Carlos Valdes Cisco Ramon / Vibe Cisco Ramon / Vibe See fewer	The Flash (2014)
Neil Sandilands Clifford DeVoe / The Thinker Clifford DeVoe / The Thinker See fewer	Sweet Tooth (2021)
Tom Cavanagh Dr. Harry Wells Dr. Harry Wells See fewer	Ed (2000)
Jesse L. Martin Joe West Joe West See fewer	Rent (2005)
Danielle Nicolet Cecile Horton Cecile Horton See fewer	Central Intelligence (2016)
Kim Engelbrecht Marlize DeVoe / The Mechanic Marlize DeVoe / The Mechanic See fewer	Eye in the Sky (2015)
Jessica Camacho Gypsy Gypsy See fewer	All Rise (2019)
Jessica Parker Kennedy Nora West-Allen Nora West-Allen See fewer	The Flash (2014)
Zachary Gulka Security Guard Security Guard See fewer	Supernatural (2005)
Laura Jaye Moderator Moderator See fewer	The Flash (2014)
Panta Mosleh Peace Corps Volunteer Peace Corps Volunteer See fewer	Christmas with the Singhs (2024)
Sean Poague Accelerated Man Accelerated Man See fewer	The Flash (2014)