"Once you got that big story up and running you could tell a lot more little stories. Veronica, for example, sets her eyes on Finn immediately, but Veronica Lodge's social status is ... at the bottom of the food chain," Aguirre-Sacasa said, adding that ultimately she and Kurt become best friends.
"And back in Riverdale, when Josie and Pussycats realize that Mercedes Jones has the greatest voice ever, they set out to recruit her for the band," he said. Kevin Keller, Archie's first openly gay character, meets Blaine, who's been "zapped in Riverdale and Kevin is immediately intrigued by this new bow-tie wearing student," he said.
Then of course, there's Sue Sylvester, the fast-talking sardonic queen of mean. She'll square off against Jughead, Aguirre-Sacasa said.