Echo Kellum, Curtis Holt on "Arrow", is super-psyched for the series' upcoming role in the CW's multi-series crossover, but the the Chicago-born actor and comedian also had some reassuring words for anyone concerned that Oliver Queen and co. will be sidelined in "Arrow"s impending 100th episode.

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Speaking to ComicBook.com, Kellum said: "I definitely think we are handling our 'Arrow' business and still doing this crossover."

Reflecting on "Arrow"'s status as the foundation of The CW's televisual DC Universe, the actor said: "I know that ['Arrow' has] kind of help[ed] set-up other shows, but there's no element of that [in the upcoming crossover]." He then added: "[The CW now has] a universe where comic book fans get to see characters from all over, and see them intersecting with each other in a way that's not been done before on TV."

Kellum also teased the magnitude of the action the crossover will involve, saying: "I literally, when I read those scripts, my mind was like, 'holy hell, how are we going to do all of this, are we going to all this, is this real?'… And we're doing it, and it's coming out great! [Director James Bamford] is back with us, and he's killing it as always, and I just can not wait for fans to see this crossover."

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Season 5 of “Arrow” premieres on October 5, while Season 3 of “The Flash” premieres on October 4, and Season 2 of “Supergirl” premieres on October 10 -- all on The CW.