[1] Ditchett opted to leave the show in 2019 to focus on his schooling, so the role was recast to Adam Hussain, who first appears on 15 April 2020.
Dev had hoped for a reunion once the twins were born but after initially allowing him in the delivery room, Sunita barred him from all contact and only accepted help from him when he was too exhausted to refuse.
After Dev discovered Sunita's engagement, he began making visits to her house and trying to spend more time with Aadi and Asha, not wanting them to forget him.
After a couple of weeks, Sunita died in hospital and it later transpired that Karl was responsible for the fire and removing her breathing tubes.
Several girlfriends came and went over the next few years - including Julie Carp (Katy Cavanagh), Erica Holroyd (Claire King) and Gina Seddon (Connie Hyde) but Mary remained a constant in Asha and Aadi's lives.
When they returned, Asha was more withdrawn and began spending a lot of time in her bedroom and when she did go outside, she remained covered in long clothing.
When Asha returned to school in September 2019, her friend Amy Barlow (Elle Mulvaney) became increasingly concerned about her, especially after discovering a bloodstain on her sleeve.
The following month, Campbell questions Danny Baldwin (Bradley Walsh) on suspicion of fraud after it is revealed he had forged a will in order to get his father Mike (Johnny Briggs), who suffered from Alzheimer's disease, to leave him his factory.
Campbell arrests Tracy Barlow (Kate Ford) and charges her with assaulting Charlie Stubbs (Bill Ward).
Campbell also questions Charlie's employee Jason Grimshaw (Ryan Thomas) who tells them that Tracy staged a deliberate row in order to get the police involved.
David Platt (Jack P. Shepherd) later visits the police station and tells Campbell that he witnessed Tracy kill Charlie in self-defence after he had attacked her with a knife.
Campbell was last seen investigating the arson attack at Leanne Battersby's (Jane Danson) restaurant "Valandros" committed by chef Paul Clayton (Tom Hudson).
He appears throughout 2007, when he has a meeting with Cilla Battersby-Brown (Wendi Peters) regarding her terminal cancer diagnosis and how it had affected her son, Chesney Brown (Sam Ashton) at school, and again when he visits the Platt family home, 8 Coronation Street after David set fire to one of his exam papers.
He appeared again two years later when Chesney's sister Fiz Brown (Jennie McAlpine) was about to punch Kenzie Judd (Jack Cooper) for bullying him.
After a seven-year absence, Mr Griffin reappeared on 30 September 2016 at a meeting to deal with Lauren (Shannon Flynn) for bullying Bethany Platt (Lucy Fallon).
Where Dev announces he is taking both Asha Alahan (Tanisha Gorey) and Aadi out of Weatherfield High and is moving them both to Oak Hill.
In October 2006, Claire announces that she would like to change his name from Thomas to Freddie, after his paternal grandfather Fred Elliott (John Savident) who died the week before.
In December 2006, he is christened Frederick Thomas with Eileen Grimshaw (Sue Cleaver) as godmother and Roy Cropper (David Neilson) as his godfather.
Originally, this storyline was to last several months but was rewritten to avoid upsetting the family of Madeleine McCann, who disappeared two weeks previously.
When a tram crashes on to the Street on 6 December 2010, Ashley is killed when the roof of 'The Joinery' Bar collapses and he is crushed by the debris.
Cameron McIntyre is a school friend of Chesney Brown (Sam Aston) and Sophie Webster (Brooke Vincent), often causing trouble.
Sally walks in on them, and orders the trio outside to play after seeing that the film is rated 18, annoying Chesney's mother Cilla (Wendi Peters) in the Rovers.
He causes trouble for her and her friends Roy (David Neilson) and Hayley Cropper (Julie Hesmondhalgh), especially when he "borrowed" their car and subsequently damaged it.
Becky's fiancé Steve McDonald (Simon Gregson) and his colleague and friend Lloyd Mullaney (Craig Charles) find out about Slug's involvement and track him down.
When Michelle's son Ryan Connor (Ben Thompson) discovers the gay affair, he steals Sonny's car and takes it for a joyride.
She visits 11 Coronation Street with a baby girl (Amelia Caudwell), whom she claims is Jason Grimshaw's (Ryan Thomas) daughter.
Jason initially refuses to bond with Holly, while all the other residents of No.11 rally round to support Eileen with the baby's upkeep.
Emma reveals that she actually had a relationship with Charlie Stubbs (Bill Ward) – who had told her that he was called Jason Grimshaw.
She tries to convince herself and others that Emma is an unfit mother, but after a change of heart, Eileen eventually hands the baby over to Social Services.
Jason bonds with her too and enjoys being a father and a family with his fiancée Sarah Platt (Tina O'Brien) and her daughter, Bethany.