Victor Garber says he and Robbie Amell will appear together in the season two premiere.

Victor Garber (Dr. Martin Stein) is ready for more of the CW superhero universe.

The veteran actor, already cast as half of Firestorm in the Flash/Arrow spinoff Legends of Tomorrow, on Thursday confirmed to The Hollywood Reporter that he will be returning to The Flash. He will be teamed with Robbie Amell, the DC Comics character Ronnie Raymond and the other half of Firestorm, in the season two premiere.

"Robbie and I will be joined on the first episode of the [next] season of The Flash, and then we'll see what happens," Garber said. Amell will not joining CW's Legends of Tomorrow universe as a series regular, though he's expected to make an appearance.

Fans have questioned how Amell would remain on The Flash while Garber would move to Legends of Tomorrow, given that their characters operate as a unit.

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All will be explained by upcoming episodes of Arrow and The Flash, Garber assured, which set up the spin-off Legends of Tomorrow, with time-traveling rogue Rip Hunter, played by Arthur Darvill, assembling a dysfunctional family of heroes and villains to battle the immortal villain Vandal Savage.

And if all goes to plan, look for the next chapter in The CW's superhero universe to be an ongoing series, with an initial 15 episodes of Legends of Tomorrow ordered. The show will debut as part of the network's 2016 mid-season lineup. "They [The CW] aren't going to introduce a limited series. This isn't HBO. They want the Full Monty," Garber said.

Legends of Tomorrow, being promoted Thursday in Toronto as part of CTV's upcoming 2015-16 campaign, also stars The Flash's Wentworth Miller (Leonard Snart/Captain Cold) and Dominic Purcell (Mick Rory/Heatwave), and Arrow's Brandon Routh as Ray Palmer/the Atom and Caity Lotz (Black Canary).

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"That's going to be the fun of it. We're all these characters put together and we will see how we all function and try to do something together," Garber explained. He adds the best part is playing a superhero without wearing an uncomfortable rubber suit and spending hours in makeup daily.

"I just talked to [NBC's Blindspot's heavily-tattooed lead character] Jaimie Alexander. She's gorgeous, but she has to sit for seven hours to do the makeup. That's my worst nightmare," Garber said. He added that as an older actor, he isn't expected to show up on set in spandex and a cape.

"Nobody wants to see that, especially me," Garber insisted.