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The Flash S04E07, Therefore I AmS04E07

The Flash · Season 4

The Flash season 4 episode 7: Therefore I Am

Aired 21 November 201741 minRated TV-PG

7.8TMDB · 34 votesMark watched

Where to watch The Flash Season 4 in Australia

The Flash season 4 is streaming in Australia on Prime Video (subscription), HBO Max (subscription) and Stan (subscription), and free on 9Now. You can also buy it on Apple TV from $29.99, Fetch TV from $29.99 and Prime Video Store from $24.99.

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Stream (subscription)

Free

Buy or rent

Availability checked 16 November 2026.

What happens in “Therefore I Am”

Barry comes face to face with DeVoe. Devoe's past is revealed through flashbacks. Meanwhile, Iris puts the final touches on the wedding, which is a week away.

Episode summary: TMDB.

Before you watch

  • It is episode 7 of 23 of season 4, so watch episodes 1 to 6 first.
  • It runs about 41 minutes.
  • Directed by David McWhirter, written by Thomas Pound and Eric Wallace.
  • TMDB users rate it 7.8 out of 10 (34 votes).

The Flash trailer

The official trailer for the series (no preview of this episode has been published).

The Flash trailerPlay video: The Flash trailer

Cast and crew of this episode

Director
David McWhirter
Writers
Thomas PoundEric Wallace
Guest stars
Keiynan Lonsdale as Wally West / Kid FlashPaul Batten as Dr. OrtizKim Suzanne Engelbrecht as Marlize DeVoe / The MechanicRob Compton as Police Officer #1Tiffani Timms as Reporter #1Neil Sandilands as Clifford DeVoe / The ThinkerPatrick Sabongui as David Singh

Credits: TMDB.

More from The Flash Season 4

Previous · S04E06When Harry Met Harry...14 November 2017Next · S04E08Crisis on Earth-X (III)28 November 2017
  1. E01
  2. E02
  3. E03
  4. E04
  5. E05
  6. E06
  7. E07
  8. E08
  9. E09
  10. E10
  11. E11
  12. E12
  13. E13
  14. E14
  15. E15
  16. E16
  17. E17
  18. E18
  19. E19
  20. E20
  21. E21
  22. E22
  23. E23

Every episode of Season 4The Flash episode guide

Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.