Dark Waters
Arrow Season 4



Critic Ratings: 16
Critics Consensus

Villain Damien Dahrk proves his formidable credentials for mayhem in a suspenseful cliffhanger that dangles matrimony for Oliver Queen and Felicity Smoak before shattering their hopes in a shocking conclusion.

Episode Info

Oliver makes a bold move against HIVE when the city is attacked. Meanwhile, Malcolm checks in on Thea and leaves her with a warning; and things take a horrible turn when Damien Darhk retaliates in a brutal manner at Oliver's mayoral holiday party.


Stephen Amell
as Oliver Queen
Katie Cassidy
as Dinah "Laurel" Lance
David Ramsey
as John Diggle
Jamey Sheridan
as Robert Queen
Paul Blackthorne
as Quentin Lance
Willa Holland
as Thea Queen
Emily Bett Rickards
as Felicity Smoak
Colton Haynes
as Roy Harper
John Barrowman
as Malcolm Merlyn
Neal McDonough
as Damien Darhk
Show More Cast

Dark Waters Photos

Critic Reviews for Dark Waters

A heartbreaking cliffhanger.

Aug 6, 2018 | Full Review…

Finally gave Olicity fans what they've been begging for ever since Felicity was introduced on the show, only to then devastate the fandom in the final shot of the episode. We're talking real devastation, people.

Aug 3, 2018 | Full Review…

I have to admit, intercutting the attack with scenes of Damian Darhk going home to his adoring family and placing a star on the tree? Very nice.

Aug 2, 2018 | Full Review…

A tense episode and one of the season's best, but with a very cruel cliffhanger.

Aug 2, 2018 | Full Review…

Damien Darhk's master plan came to light... and it was disturbing as hell.

Aug 2, 2018 | Full Review…

There was a lot to like about this midseason finale. It was really well paced, and although it was pretty dramatic and dark, it also managed to be festive and cheerful.

Aug 2, 2018 | Rating: 4.5/5 | Full Review…

Even though you saw the proposal and the attempted murder scene coming a mile away, it was still pretty shocking in its execution.

Jul 27, 2018 | Rating: 3/5 | Full Review…

Damien Darhk is pretty much the perfect Arrow villain... [Neal McDonough] makes it clear how much Darhk himself relishes the theatricality of his villainy.

Jul 26, 2018 | Rating: A- | Full Review…

What would have been an otherwise trite kidnapping subplot was saved by two things: Olicity and Malcolm Merlyn.

Aug 1, 2018 | Rating: 4.5/5 | Full Review…

"Dark Waters" may have been guilty of playing around with the audience's expectations, teasing a number of possible victims, but it also made sure to showcase Oliver and Felicity's relationship and to demonstrate why it has worked so far this season.

Aug 1, 2018 | Full Review…