Diltz is compactly built, with a gray ponytail, a ringer in old age for the actor Seymour Cassel, a John Cassavetes mainstay. He falls asleep at night listening to George Noory on “Coast to Coast AM” rapping with the paranoid faithful about lucid dreams, conspiracies, immortality. Diltz has survived Cass Elliot, a couple of Eagles, all but one of the Monkees. The other day someone called and told him the news about Robbie Robertson. Another old friend, David Crosby, died in January.

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Persons: Seymour Cassel, John Cassavetes, George Noory, He’s, Dan Fogelberg, David Cassidy, Diltz, Cass Elliot, Elizabeth Joy Grand, Robbie Robertson, —, David Crosby, Horatio Hornblower —, Crosby Organizations: Eagles, Monkees, CSN Locations: “