Michael Wheatley (originally Nicky Henson, later Neil McCaul) - Caroline's unreliable estranged (later ex-) husband; a documentary maker who spends most of his time in the jungle. The two briefly attempt a reconciliation, but this fails when Michael struggles to settle down. He later remarries and plans to fight for custody of Tom, until his much younger wife Tiffany decides she is not ready for motherhood.
Nick Murray (Anthony Newley) - Joanna's maternal grandfather, who has a difficult relationship with Charlie, having never believed him good enough for his late daughter Debbie. A shady character, Nick spends time in prison for fraud; this revelation upsets Jo, because Charlie had told her that her grandfather had moved to Spain.
Auntie Pat (Lynda Baron) - Charlie's godmother; a lively, kind-hearted woman with a habit of pinching people's cheeks in greeting (to the point that other characters instinctively protect their faces on seeing her).
Al (Charlie Creed-Miles) - Auntie Pat's uncle (although several years younger than her). A former young offender, he attempts to turn his life around by training as a hairdresser. Charlie takes him under his wing, but is less keen on having him around when he spots an attraction between Al and Jo.
