Here's the Trailer for that 'Flash'/'Arrow' Spin-Off, 'Legends of Tomorrow'

With the success of "The Flash" and "Arrow" on The CW and a big cast of supporting superheroes, it was only a matter of time before a spin-off was made.

Now, the first trailer for that Flash/Arrow spin-off is finally here!

The show will be titled "DC's Legends of Tomorrow," marking the first time DC Comics will be attaching its name to a show using its characters...mostly likely in response to Marvel doing the same with "Agents of S.H.I.E.L.D." and "Daredevil."

The cast will include Brandon Routh as Atom, Caity Lotz as Sara Lance a.k.a. White Canary, Wentworth Miller as Captain Cold, Dominic Purcell as Heat Wave, Victor Garber and Robbie Amell as Firestorm, and Ciara Renée as Hawkgirl. Franz Drameh has also been announced as Jay Jackson, who sounds a lot like Cyborg in his character description but has not been confirmed as such.

This super-team will be lead by Rip Hunter, a time-traveler played by "Doctor Who" alum Arthur Darvill who travels back in time to recruit the heroes (and villains) in order to fight a serious threat to the world.

Check out the trailer below: