I first came across Ellison's name in Miller's Dark Knight Returns, when there is the faux interview with Ellison just before the Soviet bomb's electromagnetic pulse plunges north America into darkness and chaos.
Ellison is given a line, along the lines of "... and then we'll be eating our babies for barbecue" (something like that - I'll find it tonight). I always assumed that Miller had Ellison's permission to attribute those words, or even some minor collaboration, but now I wonder if Miller was taking the piss out of Ellison's blustering personality and way of expressing himself.
I loved that scene
!In DARK KNIGHT RETURNS issue 4, pages 13 and 14, with a reporter interviewing Ellison, while Superman high in the atmosphere is stopping a nuclear missile.
https://readcomiconline.li/Comic/Batman-The-Dark-Knight-1986/Issue-4?id=19985It is typical Harlan Ellison, saying the most hyperbolic thing in the most hyperbolic way. In the 1970's he'd go to Star Trek conventions and on stage to a Trek-adoring audience say that Gene Roddenberry was a dick, talking about how Roddenberry despite being married would shack Majel Barrett in his backstage room every day while episodes were in production.
And yes, Miller and Ellison were good friends in that period, talking every day, so I'm sure Miller had Ellison's full permission to include that scene. Ellison would have been 52 when that issue was published, and Miller 29.
Steve Skeates and Sergio Aragones in PLOP issue 8 (in 1974) did a story involving an art critic named "Elliott Harlanson", a wealthy short-tempered elitist art collector that is so obviously patterned after Ellison, but somehow escapes much notice for the great Ellison parody it is.
https://readcomiconline.li/Comic/Plop/Issue-8?id=114049