According to a leaked call sheet (via Comic Book Movie), Caitlin Snow (Danielle Panabaker) and Cisco Ramon (Carlos Valdez) will make their debut on Arrow episode 2×19 “The Man Under the Hood.” The episode is set to air in early April.
Both characters are set to be series regulars on The Flash should the show be given a series order, which is all but guaranteed at this point.
Earlier this season, Barry Allen (Grant Gustin) made his debut on Arrow, which spawned The Flash spinoff. Stephen Amell had teased that we’d be seeing more characters from The Flash on Arrow this season. Once The Flash gets underway, expect several crossovers between the two shows that share a network (The CW) and executive producers (Andrew Kreisberg and Greg Berlanti).
Get ready for Killer Frost and Vibe! I’m so pumped!