Diggle (David Ramsey) vehemently disagrees with Amanda Waller (Cynthia Addai-Robinson) and her decision to form a team comprised of dangerous convicts in a scene from this week's episode of Arrow, aptly entitled "Suicide Squad". This scene also features Diggle arguing with Lyla (Audrey Marie Anderson) about this squad, which includes Deadshot (guest star Michael Rowe), Bronze Tiger (guest star Michael Jai White) and Shrapnel (guest star Sean Maher). Take a look at the latest footage before this new episode debuts Wednesday, March 19 at 8 PM ET on The CW Network, then read on for more details about several of The Flash spin-off stars getting introduced in an upcoming Arrow episode.

When The CW was initially developing The Flash spin-off, the plan was to introduce Barry Allen (Grant Gustin) in two early Season 2 episodes, and then have a back-door pilot that would have served as Arrow's 20th episode. That plan was ultimately scrapped in favor of a traditional pilot, but now we have word that a number of co-stars from The Flash will be introduced this April on Arrow.

Danielle Panabaker, who plays S.T.A.R. Labs bioengineering expert Caitlin Snow, and Carlos Valdes, who plays mechanical engineering guru Cisco Ramon (a.k.a Vibe) will be introduced in the 19th episode, "The Man Under the Hood", which was written by The Flash creators Greg Berlanti, Andrew Kreisberg and Geoff Johns.

Executive producer Marc Guggenheim explained why these characters, and not Grant Gustin's Barry Allen, will make an appearance.

"This was something that really came about because obviously Barry is in a coma at the end of episode nine [of Arrow]. That pretty much made it impossible for Barry to appear in episode 19, 20 -- pick an episode of Arrow -- because he's got to stay in a coma until October of next year."

The idea was that the S.T.A.R. Labs employees came into the Arrow universe at around the same time that the back-door pilot was slated to air, according to Marc Guggenheim.

"Even though the circumstances of that pitch changed, the idea of bringing in those characters really, really appealed to us because it allowed us to honor our original intention that we had at the beginning of the year, which was to do something Flash-related around episode 19 or 20 without of course having comatose Barry and basically paying Grant Gustin a lot of money to sit around with his eyes closed unconscious the whole episode. It's really boring."

He added that the episode, which doesn't have a specific air date yet, will likely air in April, and that Danielle Panabaker and Carlos Valdes' filmed their episodes concurrently with The Flash and Arrow. Here's what Marc Guggenheim had to say, comparing the introduction of these characters to Boba Fett's debut on the Star Wars: Holiday Special

"It allows us to further flush out The Flash universe in Arrow. We get to see their dynamic. In fact, that was an added producing/logistical complication. It's just so much fun to see these characters before you -- it's like previewing Boba Fett in the holiday special."
Cinemark Movie Club