Unicron was voiced by Orson Welles. Unicron proved to be Welles's final role, as he died a few days after completing his work on the project; rumors persist that Welles did not make a complete recording of all his lines and that Leonard Nimoy filled in for him, but the film's voice director Wally Burr and actress Susan Blu refute the claim. There were two early attempts to produce Unicron toys for the "Transformers" toyline, featuring voice clips from Welles himself, but the results never made it to production. It was not until 2003 that a production Unicron toy was made. For the 20th anniversary of the original movie, Diamond Select released an eight and a half-inch tall statue of Unicron and Rodimus Prime.