Well spotted Mrs. Biggs ......
"THE real Mrs Biggs makes an appearance in this week’s episode of the ITV1 drama.
Charmian Brent, who divorced Great Train Robber Ronnie Biggs in 1976, was a consultant on the series.
Viewers will see Sheridan Smith, as Charmian, appearing in court as legal arguments take place, with the real Charmian sitting behind her in the public gallery.
Writer Jeff Pope says: “It’s her little Hitchcock moment.”"
I've really enjoyed the series so far.