Show bosses have decided to build up a family around newcomer Khalid Nazir, played by Jimi Mistry.
Digital Spy can confirm that actor Marc Anwar has already been cast as Khalid's father Sharif. Khalid's mother, son and daughter will also be brought in.
Khalid, known as Kal to his friends, made his first appearance on the ITV soap last month when Dev Alahan hired him as a personal trainer.
Kal will become more prominent on screen over the next few months as he will go into business with Dev and decide to move in nearby.
Coronation Street's producer Stuart Blackburn explained: "We're starting to build Kal's family up. We've cast his dad and I'm loving him on paper already. Kal and Dev are also going to open a gym at the Victoria Court complex.
"We've established that Kal, his son and his daughter live with Kal's mum and dad. We're going to see his mum, dad and his children - we're probably going to bring them onto the street and they'll be the first Muslim family that Corrie has ever had."
On Kal's dad Sharif, he added: "Sharif retired some time ago. He isn't rich, but he'd made enough money. We imagine that there were some health problems and his wife said, 'Now you're no longer going to go to work 12 hours a day!'"
The launch of the gym will also mean that a new regular set is being introduced to the show and will be unveiled later in the year.
Digital Spy Soap Scoop video - press play below for gossip on the build-up to Hayley's Coronation Street exit, an eventful week for Carol in EastEnders, a big ultimatum in Emmerdale and the latest Hollyoaks stunt drama.