Tim Suter was the Beeb’s managing director of weekly programmes in 1995 when Bashir dishonestly landed his interview with the royal.

Lord Dyson’s report revealed that Suter quizzed the reporter at the time but took no action.

He was appointed to the board of Ofcom in 2017 but has left in the wake of the scandal.

Boss Dame Melanie Dawes said: “By mutual agreement, Tim Suter . . . is stepping down with immediate effect.”

She said Ofcom had questions for the BBC over its “transparency and accountability” in the light of Dyson.

Meanwhile, Lord Tony Hall, 70, the former BBC news chief who oversaw the Diana talk and cover-up, is fearing for his job.

Lord Hall has admitted he was 'wrong to trust Martin Bashir'

He was criticised in the Dyson report over a “woefully ineffective” investigation into Bashir’s practices.

Lord Hall sent Bashir a congratulatory letter after the Di interview and later became BBC director- general.

He has admitted he was “wrong to trust Martin Bashir”.

After seven years as BBC chief, he became National Gallery chairman last year, a term due to end in 2024.

A source said: “He came out of Dyson looking especially bad and is concerned for his future.”

The National Gallery has not commented.

Lord Hall sent Bashir a congratulatory letter after the Di interview and later became BBC director- general

Tim Suter judged Martin Bashir’s dealings with Princess Diana to be 'straight and fair'