Recently TVInsider unveiled a first look photo of Echo Kellum as Curtis Holt aka Mr Terriffic in season 4 of Arrow.

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In the image Holt is seen in his civilian avatar talking to Felicity (Emily Bett Rickards) in the Arrow offices. It has been revealed that Holt will be working very closely with Felicity as he is essentially a tech specialist.

Showrunner Marc Guggenheim also spoke to TVInsider about this new addition and how it will make things more interesting going forward.

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"Curtis is someone we started talking about [in the writers room] at the end of last year, out of a desire to fill in some gaps in terms of the cast and storytelling," he said.

Guggenheim suggested that even though in someway Holt "fills the same role Brandon [Routh] filled last year," he added that "no one will compare the two. It is really a different performance than Brandon's."

The showrunner also dished about how Echo has already become a favorite for the cast of Arrow and that he feels that the fans will also take to him. Guggenheim added that the actor reminded him of Rickards in the first season.

"Echo has quickly become an MVP of the cast," Guggenheim said. "I think a lot of people will compare him favorably to the addition of Emily in Season 1. He has this wonderful energy."

Season 4 of Arrow will premiere on Oct. 7.

Watch the preview: