The actor's character Ken recently kicked adoptive daughter Tracy (Kate Ford) out of the family home after Becky McDonald's revenge saw the schemer's true colours revealed.
Meanwhile, more drama is expected to play out over the coming days as Ken's son Peter (Chris Gascoyne) deals with the consequences of his affair with Carla Connor being exposed.
Roache told Loose Women today: "Long may it reign! Dysfunctionality is the order of the day! I'm not responsible for Tracy's genes - that's Deirdre and Ray Langton. But I'm afraid for Peter's genes, I am!
"Peter, going way back, he's a bigamist, an alcoholic, an adulterer. You name it, he's done it."
Discussing Tracy, he continued: "She is a one - and a half! And that will carry on. She is unbelievable, really, what she does. Deirdre certainly feels for her, and Ken does occasionally. When she got married, Ken thought it was all going to be lovely, but then he discovered what she'd done. It's great stories."
The 79-year-old, who has been with Coronation Street since episode one in 1960, added that he wants to be part of the drama on the cobbles for some time to come.
He explained: "People say, 'When are you going to retire?' I say, 'It's not an option'. While they want me and while I can do it, I will carry on."
> Coronation Street Steve McDonald 'to wage war on Tracy Barlow'
> Coronation Street Simon Gregson: 'Steve McDonald is devious now'
> Read more Coronation Street news and spoilers
Watch a preview of Friday night's Coronation Street double bill in the video below: