The Flash

Season 3 Episode 21

Cause and Effect

21
Aired Tuesday 8:00 PM May 09, 2017 on The CW
7.2
out of 10
User Rating
59 votes

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Episode Summary

EDIT

Cisco and Julian come up with a desperate plan to stop Savitar once Barry tells them who he is. Meanwhile, H.R. and Tracy work to design the Speed Force trap, and Killer Frost visits S.T.A.R. Labs.

Who was the Episode MVP ?

Wednesday
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Friday
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Anne Dudek

Anne Dudek

Tracy Brand

Guest Star

Richard Zeman

Richard Zeman

Lucius Coolidge/Heatmonger

Guest Star

Liam Hughes

Liam Hughes

Young Barry

Guest Star

Tom Felton

Tom Felton

Julian Albert

Recurring Role

Danielle Nicolet

Danielle Nicolet

DA Cecile Horton

Recurring Role

Andre Tricoteux

Andre Tricoteux

Savitar

Recurring Role

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Trivia, Notes, Quotes and Allusions

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