Upon the return of Kat's father Charlie, Wallace said that this will provide a "big boost" to her character. Talking to "We Love Telly", asked whether it's important for Kat to see Charlie again, Wallace replied: "Yes, definitely. With what happened the night they thought Tommy died, things were still unresolved for them. Although they cleared the air before he left, things weren't right between them, so to have him back with her now makes it all the more special. It's also Charlie that makes Kat realise that she needs to bond with Tommy. He makes her see that she can do this." Discussing what type of mother Kat will be, Wallace added: "I think she wants to be the best mum possible. She knows that this is her second chance to make a go of it and she is determined to do a good job."