His notable storylines have originally centered on his on-and-off romantic chemistry with Sally that involved two separate marriages, the first of which ended after he had a tryst with local neighbour Natalie Horrocks (Denise Welch); and then his second marriage with Sally collapsed beyond repair after he embarked on a long-running affair with fellow resident Molly Dobbs (Vicky Binns) that ultimately led to him fathering her son Jack (Kyran Bowes) after her untimely death in a tram crash amid the show's 50th anniversary live episode.

It was then Kevin's sister Debbie (Sue Devaney) and their father, Bill (Peter Armitage), arrive in Weatherfield and buy Elsie Tanner’s flat.

Over the next few years Kevin became good friends with Terry Duckworth (Nigel Pivaro), who sets him up on a blind date with Michelle Robinson (Stephanie Tague) in May 1985.

Later that year, Kevin starts dating factory worker Alison Wakefield (Naomi Radcliffe), but she leaves him when it becomes clear that he is still in love with Sally.

However, upon discovering that she is pregnant, they reconcile and marry in January 2000 with Kevin's daughters, Roy (David Neilson) and Hayley Cropper (Julie Hesmondhalgh), Linda Sykes (Jacqueline Pirie) and Ashley Peacock (Steven Arnold) present.

In the following months, Kevin dates Molly Hardcastle (Jacqueline Kingston), a nurse he meets through his friend, Martin Platt (Sean Wilson), whom he helps reconsider committing suicide when he learns that she is financial trouble.

During the following years, Kevin continues to work at the garage and becomes a brotherly figure to employee Tyrone Dobbs (Alan Halsall) as their friendship develops overtime.

Sally also starts working for car dealer Ian Davenport (Philip Bretherton), whose daughter, Gemma, is one of Rosie's friends at Oakhill.

When Kevin finds out, he is devastated and decides to end the marriage but Rosie persuades him not to, convincing him that Sally does love him and is only having the fling so that she can pay her tuition fees.

He confronts the specific garage mechanic alone with Jimmy before going on to visit Tony about the situation, although Sally and Rosie deny Kevin's proof.

They initially think that she has run off with lottery winnings from the Underworld syndicate until Janice Battersby (Vicky Entwistle) admits that she stole Rosie's identity and used it to claim the money.

Afterwards, Kevin feels guilty and decides to end the fling by persuading Tyrone to take Molly on holiday but it resumes in August.

On Christmas Day, Kevin and Molly agree that they will tell their respective partners then but Sally drops a bombshell of her own - she has breast cancer.

In August 2010 at Roy and Hayley's wedding, Claire Peacock (Julia Haworth) tells the Street that she caught Sophie and her best friend, Sian Powers (Sacha Parkinson), kissing a few days before but Kevin and Sally don't believe her.

On 6 December, Kevin is knocked down by the explosion in the Joinery and derails a tram that smashes into the corner shop, crushing Molly, who is inside with baby Jack and Sunita Alahan (Shobna Gulati).

The funeral is arranged for 17 December 2010 and during the service, Tyrone breaks down while giving his eulogy and Kevin takes over but Sally leaves the church, disgusted.

Later on, Kevin returns home and Sally kicks him out despite his pleas for forgiveness; Rosie and Sophie also turn on their father, both equally outraged by his betrayal, and insist that he leave.

Kevin spends the night in the garage and goes back home the next day, barging in and refusing to leave until Sally threatens to call the police and have him arrested.

He returns the other child and collects Jack from the studio, telling Rosie to stay away and ignores her until her boss, Alfie, Sally's new boyfriend, Jeff Cullen (Steven Houghton), fires her.

Kevin is crushed under a car he is working on when it gives way and is saved by Tyrone along with Terry's estranged son Tommy Duckworth (Chris Fountain).

However, the next day, Sophie and Sian are horrified to learn that the charity never bid for the house and that the soup kitchen is being demolished, with builders insisting it hasn't been occupied for months.

Soon Kevin learns that Sally is dating Frank Foster (Andrew Lancel), who is awaiting trial for raping Carla Connor (Alison King).

After Frank was cleared of raping Carla, he made plans for Underworld's future and cheated on Sally with business associate, Jenny Sumner (Niky Wardley).

Kevin arrives in a taxi, while longtime resident Rita Sullivan (Barbara Knox) invites him into The Kabin for a cup of tea and a chat.

They go on a few dates and Kevin invites her back to his for a nightcap but Jenny is reluctant to return to Coronation Street for fear of seeing her former foster mother, Rita.

Actor Michael Le Vell auditioned for the role and landed the part after he had played another character called Neil Grimshaw, a newspaper delivery boy who worked at The Kabin.

ITV publicity say of the character: "A no-nonsense garage mechanic who likes an uncomplicated life and his tea on the table when he comes home from work.".

Initially his life consists of working by day and drinking with friends Terry Duckworth (Nigel Pivaro) and Curly Watts (Kevin Kennedy) in the evening.

In February 2013, Michael Le Vell was accused of sexual assault allegations and Kevin was written out of the series with the explanation that he was in Germany taking care of his father Bill Webster to explain his absence.

Kevin returned briefly in March 2014, 13 months since his last appearance,[11] before taking another temporary break from the show after it was revealed that Le Vell had taken cocaine during his absence.