|Portrayed by||Alex Avery|
|Introduced by||Sean O'Connor|
|First Appearance||29 February 2008|
|Last Appearance||16 December 2016|
|Duration||2008, 2009, 2014, 2016|
Simon was Abi Branning and Ben Mitchell's teacher, who appears when Max Branning and Tanya Branning and Phil Mitchell and Shirley Carter attended a parents' evening at Walford High School. He reappears on 5 June 2009 to inform Bianca Jackson that her adoptive daughter Whitney Dean did not attend any of her GCSE exams. Bianca is outraged with the way he delivers this and ejects him from her house.
In July 2014, Bianca's daughter Tiffany Butcher inadvertently brings drugs into school, cooked into brownies obtained from the local café, so Mr Ackroyd calls Bianca and her mother Carol Jackson in. Bianca denies cooking the brownies, but she is drunk and he tells her that he must inform Social Services.
In December 2016, Mr Ackroyd appears again helping organize a rehearsal for the Walford Christmas players production of "A Christmas Carol" featuring two of his pupils, Louise Mitchell and Shakil Kazemi.