The latest major crossover between The CW's interconnected DC Comics-based properties is set to air on the April 14 installment of "The Flash," with "Arrow" regular Brandon Routh (Ray Palmer/The Atom) making his debut on the newer series, plus Emily Bett Rickards making a "Flash" return appearance in her "Arrow" role of Felicity.
The CW has released 21 new photos from the episode, including Ray, Felicity, Barry (Grant Gustin), Iris (Candice Patton) and Eddie (Rick Cosnett) sharing a (likely awkward) meal, and Ray suited up as The Atom.
The "All Star Team Up" episode of "The Flash" is scheduled to air 8 p.m. Tuesday, April 14 on The CW. Here's the official description of the episode:
ARROW'S FELICITY SMOAK (EMILY BETT RICKARDS) AND RAY PALMER (BRANDON ROUTH) ARRIVE IN CENTRAL CITY; EMILY KINNEY ("The Walking Dead") GUETS STARS AS BRIE LARVIN - Barry (Grant Gustin) is surprised when Felicity Smoak (guest star Emily Bett Rickards) arrives from Starling City along with her boyfriend, Ray Palmer (guest star Brandon Routh), who flies in as the Atom. They've come to visit S.T.A.R. Labs as Ray needs help with his suit. Their timing turns out to be fortuitous because it's all hands on deck after a meta human named Brie Larvin (guest star Emily Kinney) unleashes hundreds of robotic bees to attack and kill her former co-workers, including Dr. Tina McGee (guest star Amanda Pays). A group dinner with Barry, Felicity, Ray, Iris (Candice Patton) and Eddie (Rick Cosnett) turns into a disaster. Kevin Tancharoen directed the episode written by Grainne Godfree & Kai Yu Wu (#118). Original airdate 4/14/2015.