The playwright Roberto Aguirre-Sacasa is adding a feather to his cap: chief creative officer of Archie Comic Publications. Mr. Aguirre-Sacasa, who has also written for film and television, will be working closely with the Archie team in Mamaroneck, N.Y., to figure out the best way to exploit the company’s characters in comics, of course, but also in other media.

“Educating the film and television community about Archie and its properties” is a big part of the job, said Mr. Aguirre-Sacasa, who is primarily based in Los Angeles. Besides Archie and the gang, there are Josie and her bandmates, the Red Circle line of superheroes, Sabrina the teenage witch and others. “If there’s something you want, we probably have it,” he said.

Jon Goldwater, the publisher and co-chief executive of Archie, says he is determined to give his new creative officer the freedom to develop the characters he feels most strongly about. “My marching order, so to speak, is you have a blank canvas,” he said. “I’m going to let Roberto be the guy to blow the whistle and start the race.”

The men already have worked together. In 2013, the company published a four-part comic book story, drawn by Dan Parent, which featured the characters from “Glee,” a television series that Mr. Aguirre-Sacasa works on, meeting the gang from Riverdale. The first issue sold about 4,500 copies.