<P> The voice actor for Ed's spoken lines was Allan "Rocky" Lane, a former B - movie cowboy star . Sheldon Allman provided Ed's singing voice in episodes; his solo line ("I am Mister Ed") at the close of the show's theme song was provided by its composer, Jay Livingston . Allan Lane was alluded to by the producers only as "an actor who prefers to remain nameless ." After the show became a hit, Lane campaigned the producers for credit but never received it . </P> <P> The horse Bamboo Harvester portrayed Ed throughout the run . Ed's stablemate, a quarterhorse named Pumpkin, also served as Bamboo Harvester's stunt double for the show . This horse later appeared again in the television series Green Acres . </P> <P> Bamboo Harvester's trainer was Les Hilton . To create the impression that Ed was having a conversation, Hilton initially used a thread technique he had employed for Lubin's earlier Mule films; in time, though, this became unnecessary . As actor Alan Young recounted: "It was initially done by putting a piece of nylon thread in his mouth . But Ed actually learned to move his lips on cue when the trainer touched his hoof . In fact, he soon learned to do it when I stopped talking during a scene! Ed was very smart ." </P> <P> Reports circulated during and after the show's run that the talking effect was achieved by crew members applying peanut butter to the horse's gums . Alan Young said in later interviews that he invented the story . "Al Simon and Arthur Lubin, the producers, suggested we keep the method (of making the horse appear to talk) a secret because they thought kids would be disappointed if they found out the technical details of how it was done, so I made up the peanut butter story, and everyone bought it ." </P>

How did they make mr. ed's lips move
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