Warning: This article contains spoilers from Tuesdays midseason premiere ofThe Flash, titled Marathon.

Weve seen what a bad guy he is already.

Obviously, as you saw at the end of the [midseason] opener, it directly affects Iris.

Marathon

Katie Yu/The CW

And Wallace is not wrong.

Yes,The Flashwill definitely reveal where Iris traveled.

Its one of the most interesting and exciting parts, says Wallace.

Without giving away too many spoilers, sometimes reality isnt what you think it is.

Perception of what you think is real doesnt necessarily mean its real.

So its very strange.

Iris wasnt the only one who went on a trip in Marathon.

Dont worry, though, Valdes isnt leaving the show.

His absence is only temporary and is a practical decision due to scheduling.

Hes not going anywhere.

He is an integral part of Graphic Novel #2.

We love Cisco, so it was just practical in that sense.

I dont want fans to think Cisco is leaving the show.

Its not that at all, says Wallace.

The Flashairs Tuesdays at 8 p.m. on The CW.