Well here's someone you probably never expected to see again. 

Thamsanqa Jantjie, the man who gained international fame through his nonsense hand-signing at Nelson Mandela's memorial service, is now the star of a new ad for an Israeli start-up.

A the time, Jantjie claimed his bizarre actions, which were subject to widespread ridicule and outrage, were the result of a schizophrenic episode. It was later claimed by South African news agency eNCA that he had previously faced a variety of criminal charges, including kidnap and murder. He has been receiving treatment in a South African psychiatric hospital since December.

The ad starts off with him introducing himself: "Hi I'm Thamsanqa Jantjie from Nelson Mandela's funeral."

He then starts signing. "Believe me, I'm a real sign language interpreter, I speak sign language – not," he signs to the backdrop of a female voice-over.

He then speaks in his own voice to apologise.

"I'm really, really sorry for what happened," he says in the ad speaking from a podium.

Speaking to NBC News, CEO Max Bluvband explained that they had hired a Zulu-speaking journalist to convince staff at the hospital that he needed a day's release to attend a "family event". The video was then shot in just a few hours.

Despite condemnation from the National Association for the Deaf, Livelens have stood behind the advertisement. Marketing manager Sefi Shaked said:

"We saw him with our own eyes; he's a normal guy. Now he can have the closure and earn some money from it. It’s morally right."

Right, wrong, or just plain strange? Have a look and decide for yourself.