1994-2023
Zak arrives in the village in October 1994 and immediately challenges old bare-knuckle boxing adversary Ned Glover (Johnny Leeze) to a bare-knuckle fight, which he goes on to lose. Zak's family start a feud with the McAllister family over the death of his son, Ben (Steve Fury), following a fight with Luke McAllister (Noah Huntley) two months earlier. Despite discovering that Ben died as a result of a heart defect, the Dingles still blame Luke and force the family, except Luke, to leave the village. He is enraged to discover his daughter, Tina (Jacqueline Pirie) is in a relationship with Luke and attacks him until Tina tells him she is expecting Luke's baby. The truth is revealed when Tina humiliates Luke at the altar and tells him that there is no baby, in revenge for Ben's death. After Luke is killed in a car crash in August 1995, just seconds after Tina had jumped from the car, the Dingles and McAllisters put the feud aside. Zak's wife, Nellie (Sandra Gough) attends to her sick father, Jimmy in Ireland but does not return.
Lisa Clegg (Jane Cox) enters Zak's life and they begin a relationship, and despite a few hiccups, they eventually marry. Lisa gives birth to a daughter, Belle (Emily Mather) at Christmas 1998, which is a shock as she did not know she was pregnant. Zak's and Lisa's happiness is tested when Nellie (now Maggie Tagney) returns and tries to win Zak back but is unsuccessful. When a bus crashes in the village, Butch is injured and his condition rapidly deteriorates and he dies, leaving Zak devastated at the second death of one of his sons. Fresh trauma comes when Zak learns Lisa worked on the bus's engine before it was roadworthy, leading to Zak blaming her for his son's death for a while but he eventually relents. Zak reveals to Cain (Jeff Hordley) that he is his real father as the result of an affair with Cain's mother, Faith (Gillian Jephcott; Sally Dexter). After some violent words, the two men accept the situation and a bond develops between them.
In 2001, Zak discovers he has testicular cancer, confiding in long-time friend Seth Armstrong (Stan Richards), although Seth originally gets the wrong idea. Zak decides to not get treatment but Seth, his son Sam (James Hooton) and nephew Marlon (Mark Charnock) kidnap him and force him to come to his senses, he goes to hospital. As soon as he recovers, domestic harmony is shattered when his elderly mother, Peg (Jeanne Hepple), comes to stay. Zak blames Peg for the death of his father, Jed (Richard Mayes), believing she murdered him but when she reveals that Jed deserted them, they declare a truce. Zak later tracks down a dying Jed, who tells him of a fortune in Chile. Zak leaves to find the fortune, much to the shock of his family and in his absence, Lisa becomes close to Eddie Hope but realizes she still loves Zak and they reconcile on his return. Zak attacks Andy Sugden (Kelvin Fletcher) when he learns he is having an affair with his granddaughter Debbie (Charley Webb). When Debbie gives birth to a daughter, Sarah, Zak and Lisa help Debbie but she gives Sarah to Emily Kirk (Kate McGregor) as she is not ready to be a mother. Zak's youngest son, Sam (James Hooton), returns with his fiance, Alice Wilson (Ursula Holden-Gill) and they are expecting a child. Sam and Alice marry but Alice develops cancer and dies shortly after their son, Samson (Bradley Milnes) is born. Zak and the family rally round to help Sam.
Zak strikes up a friendship with Rosemary King (Linda Thorson). He takes her at face value, despite her being devious and manipulative. They get on and she asks him to keep a discreet eye on her son, Grayson Sinclair (Christopher Villiers), and let her know what he is doing. She hires him as gamekeeper at Home Farm and confided family secrets, knowing she could trust him. Rosemary bonds with Belle and pays for her to attend private school but Zak cuts this associate short when he learns Rosemary has been poisoning her daughter-in-law Perdita Hyde-Sinclair (Georgia Slowe).
When Cain is viciously attacked in December 2011, Zak is very uncomfortable to the extent he refuses to visit him hospital. He later reveals himself to Cain as his attacker when he discovers Cain is trying to get Jai Sharma (Chris Bisson) falsely imprisoned for the crime. Zak also confesses to Lisa and prepares hand himself in, but Cain keeps his father's involvement in the attack secret, and retracts his statement against Jai. Zak's guilt weighs heavily on him and disappears for long periods of time and begins drinking heavily. He takes Samson (now Sam Hall) poaching one day and accidentally leaves his phone in the van. Lisa and Sam are frantic with worry. Zak and Samson are later found by Megan Macey (Gaynor Faye), who calls Sam and he arrives to collect Samson and warns Zak to stay away from him. A few weeks later, a scan reveals some abnormalities in Zak's body, he is referred to a consultant to have some more scans. At the appointment with the radiologist, the doctor warns Zak that in the abnormalities could be pancreatic cancer, but also could be a simple curable form of the flu. However, an appointment later reveals that Zak does not have pancreatic cancer.
Zak begins to act erratically and becomes paranoid, he is told by a vet that his chickens are healthy but, in his paranoia, and belief that there is something wrong, he kills them. He later starts believing he has cancer again and talks to a doctor about it, the doctor tells him he does not have cancer but Zak refuses to believe it and tells his family that he has cancer. It later becomes apparent that Zak has suffered a nervous breakdown and is later sectioned.
On Christmas Day 2015, Belle reveals to Lisa that she'd seen Zak having an affair with their lodger Joanie Wright (Denise Black). Lisa is heartbroken by the news, and her and Zak separate. This separation effectively severs Zak's ties to the rest of the family, who convene at Wishing Well Cottage and decide to "excommunicate" Zak from the Dingles. Zak and Joanie then move in with the biological grandmother of Joanie's adoptive grandson Kyle, Kerry.
Early in 2016, Zak tries to regain the attention of his estranged family, especially after they all begin to act rather out of character. Zak becomes determined to know what's going on, and he pesters Sam and Belle in the village shop to tell him the secret they're supposedly hiding. The two initially try to keep it together, but, pushed to her limit, Belle blurts out that Zak's great-nephew Aaron Livesy (Danny Miller) was raped as a child by his father Gordon. Much like the rest of the family, Zak is devastated by the news, and Joanie begins to question his loyalties.
After Joanie accepts Zak's proposal of marriage, they quickly plan their wedding and during the stag do put together at The Woolpack, Zak drinks too much and mistakenly calls Joanie 'Lisa' which causes her to panic and get cold feet. On the day of the wedding Zak is upset after thinking that Joanie has jilted him, however she arrives at the church late and they are eventually married.
Despite his commitment to Joanie, Zak still remains close to Lisa causing Joanie and him to argue constantly. On Christmas Day, Joanie splits up with Zak due to his unresolved feelings for Lisa and he tried to reconcile with Lisa, who rejects him. When Joanie dies suddenly after being released from prison, Lisa comforts Zak in his grief and she accepts him.
Lisa and Zak then get back together and in early 2018 Lisa, Zak and the Dingles protest to save their house from being torn down by Joe Tate. In May 2018 Lisa and Zak's relationship take a turn and Lisa tells Zak she has got a job offer in Scotland and has been called up to work there for a few months. In September it's revealed that Lisa is now travelling overseas and Zak offers to go with her so he leaves.
In early 2019, it is revealed that Lisa has a deathly heart condition and has not got long left to live. Lisa then tells Charity that Zak can barely cope with the news and that she does not want Charity to tell anybody yet. Zak asked Lisa to marry him and after only two days of planning they married on 23 May 2019 in the church. Before the wedding, the Dingle's pigs escaped from their pen and were rounded up by Cain, Belle and Lisa in their wedding outfits causing Lisa's dress to become covered in mud. After the wedding, celebrations were held in the pub and Lisa went home to get changed as she did not want her wedding photos to be of her covered in mud. Zak went to find her and found her asleep on the sofa but when he tried to wake her up he realised that she had died.
