When it comes to learning a lot about what went into creating and keeping the shared universe running, 'Arrowverse' co-mastermind Marc Guggenheim continues proving to be one of the best sources of intel. For this go-around, Guggenheim was asked on Twitter/X earlier this week who the most difficult character was in the 'Arrowverse' to cast.
It took us forever to find an actress we were happy with, but once we cast her, the network said that 'we could do better.' Personally, I wasn't so sure,' Guggenheim shared when it came to casting Dinah. 'Not with the very small amount of time we had remaining until production. But then Juliana Harkavy became available at the literal last minute, came in, and blew us all away.
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