Millions know his voice. Few knew his name.

Phil Sayer, whose warning to "mind the gap" is heard every day on the London Underground, has died at the age of 62.

SayerHamilton, the voiceover company he ran with his wife Elinor Hamilton, said Sayer died on Thursday.

Sayer worked as a radio presenter before moving into voiceover work. His reminder to travelers to mind the gap between the train and the platform is used across London's subway system.

His voice is also heard on trains and at railway stations around Britain, often apologizing for cancelations and delays. Sayer told the Telegraph newspaper in 2010 that he'd apologized "more than anybody in the U.K."

On its Facebook page Friday, SayerHamilton called Sayer the "voice of reason, radio, and railways."