IT journalist Guy Kewney was amazed to see another man appear on a plasma screen with a banner showing his name as he waited in the BBC News 24 reception for an interview.
The mix-up happened when a cab driver, who it appears was booked to pick up Kewney at the end of the interview, responded to a call for his name in reception.
It appears that the taxi driver did not realise the mistake even when he was led into a studio and wired for sound.
The real Kewney said on his NewsWireless blog: "Watch his incredible recovery, and his determination to show that this may be a complete surprise to him but that he can out-Kewney any darned NewsWireless editor if he has to."
Latest Tesla news: Tesla stock price tanks amid reports of 'widening probe' by SEC and claims the base Model 3 loses money
SEC 'probe' takes its toll on Tesla as new research suggests that Tesla loses $6,000 on every $35,000 Model 3
10nm Cannon Lake Core i3-8121U CPUs make a rare outing with Intel's NUC mini PC
'Notorious' Australian child hacker thought he had executed 'flawless' hack
The former employee says that Tesla fired him for bringing the accusations to management internally