Comic-Con: ‘Arrow’s’ Stephen Amell Will Appear in ‘Legends of Tomorrow’ Season 2 Premiere

Executive producers Marc Guggenheim and Phil Klemmer also revealed that Johnathan Schaech will reprise his iconic DC Comics role as Jonah Hex in episode six.  Bettina Strauss/The CW

Executive producers Marc Guggenheim and Phil Klemmer also revealed that Johnathan Schaech will reprise his iconic DC Comics role as Jonah Hex in episode six.

The first major Berlanti-verse crossover has been revealed.

During the Legends of Tomorrow panel at Comic-Con on Saturday, executive producers Marc Guggenheim and Phil Klemmer announced that Arrow's Stephen Amell will appear in the Legends season two premiere.

"It's right out of the gate, right away. The first few seconds. You won't have to wait long to see it," Klemmer said of the crossover. "I would recommend waiting to go to the bathroom until the first commercial break."

Guggenheim also noted that that Amell would be seen as "Mayor Oliver Queen" in the episode instead of the Green Arrow. While this is only the first crossover slated for this season, all four Greg Berlanti-produced shows — Arrow, The Flash, Legends of Tomorrow and CBS-turned-CW series Supergirl — will unite for one major crossover event in the fall. 

During the panel, the producers also announced that returning guest star Johnathan Schaech would reprise his iconic DC Comics role of Jonah Hex in episode six, as well as introduce Justice Society of America members Obsidian, Stargirl and Dr. Mid-Nite. Those roles have yet to be cast. 

Legends of Tomorrow returns for season two on Thursday, Oct. 13 at 8 p.m. on The CW.

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Sydney Bucksbaum