"Yours Truly, Johnny Dollar" was a popular weekly radio mystery play in the 1960s and early 1970s on Radio Iran. The role of Johnny Dollar was played by Heidar Saremi, a popular radio performer. Contrary to the original, Johnny Dollar was more of a criminal investigator. At the end of each episode, the narrator asked the radio audience how Johnny found the perpetrators, making the show a mystery quiz as well as a drama; those who guessed correctly were entered into a raffle for a prize.