ABC had me at “redhead” when the opportunity to interview “Detroit 1-8-7” co-star Erin Cummings appeared. Learning she had a recurring role on AMC’s “Mad Men” earlier this season didn’t hurt either. And neither did her experience as a co-star of the film Bitch Slap, in which she played “The Sex Bomb” alongside America Olivo, a recent guest on Mr. Media. (Julia Voth, you know you’re next!) ERIN CUMMINGS audio excerpt: "(Mad Men star) Jon Hamm is even more sexy, more enjoyable, and more intelligent in person than anything he has ever portrayed on television. I hope every actress has a chance to work with him."  Seeing that she looks like the Playboy magazine idea of a librarian was certainly a plus. And how about the timing? Cummings’ freshman police procedural series, “Detroit 1-8-7,” which stars Michael Imperioli of “The Sopranos” somewhat reprising his role from the short-lived “Life On Mars,” as well as James McDaniel of “NYPD Blue,” just got a vote of confidence from the alphabet network: an order for five more new episodes this season. Erin Cummings • • • •  • •