Robin Williams says he has never been confused for popstar Robbie Williams despite having similar names.
The actor was quizzed about the possible case of mistaken identity when promoting his new movie World's Greatest Dad:
"Not at all. It takes a lot of medication to confuse us."
Robin, 59, also said he has never been confused with tennis star Serena Williams either:
"Never. I just love watching... you don't even need to watch, you just put on Wimbledon, turn off the picture and when Serena plays Sharapova it's the closest thing to phone sex!"
World's Greatest Dad is released in cinemas across the UK on Friday 24 September.