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Though “Constantine” is over at NBC, John Constantine will live on thanks to “Arrow.” The CW announced during a panel at the 2015 TCA summer press tour that Matt Ryan would appear on The CW series as the master of the occult.

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“Matt Ryan will be reprising his role of John Constantine in an upcoming episode of ‘Arrow’,” says Paul Hewitt, SVP of network communications at The CW. “I can’t give you too many details, but trust me it’s going to be pretty cool.”

Speaking to the press, CW president Mark Pedowitz adds, “The series is no longer on the air and luckily one of our parent companies, Warner Bros., was the production company for ‘Constantine’ and we worked with them and it’s a great one-shot episode.”

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Ryan followed up the announcement with a video on Twitter, saying, “The rumors are true. John is coming to Star City. I’ll see you this fall.

In a release, “Arrow” executive producer Marc Guggenheim says, “The introduction of magic and mysticism on the show this season has provided a truly organic opportunity for us to bring John Constantine to Arrow and the CW’s DC universe. It will be a well-deserved tip of the hat to all the Constantine fans who were so incredibly supportive of that series.”

While the appearance means John Constantine technically exists within the CW’s shared DC universe, which includes “Arrow,” “The Flash” and “Legends of Tomorrow,” it’s unclear whether he will make further appearances. When asked by Zap2it, Pedowitz says, “That’s a question depending on where the writers want to go … right now it’s just one episode.”

As for what he’ll be doing on the show, John will help resurrect a character.

“Arrow” returns for Season 4 on Wednesday, Oct. 7 on The CW.

Additional reporting by Andrea Reiher

Posted by:Chris E. Hayner

Chris E. Hayner is equal parts nerd, crazy person and coffee. He watches too much TV, knows more about pro wrestling than you do and remembers every single show from the TGIF lineup. You may have seen him as a pro-shark protester in "Sharknado 3." His eventual memoir will be called "You're Wrong, Here's Why..." TV words to live by: "I'm a firm believer that sometimes it's right to do the wrong thing."