The star's seven-year-old daughter Sunnie dropped her dad right in it when she told a newspaper reporter that he often calls in sick – and then spends the day lounging around the house.
Danny, who plays hardman Mick Carter in the BBC soap, appeared on TV show Big Star's Little Star with Sunnie when she grassed him up.
The show features celebrities and their children who are asked questions about each other and Sunnie didn't hold back when it came to dropping her dad in it.
According to The Sun, host Stephen Mulhern asked Sunnie: "What's your daddy's biggest secret?"
Sunnie replied: "Dad calls into work saying he can't come in because he's helping Mummy. But he just lays around on the sofa all day."
Danny, 37, admitted he could be find himself in hot water with EastEnders boss Dominic Treadwell-Collins, saying: "I'm in trouble now. I hope he's not watching.
He then added: "I knew I should never have done this show."
Unplanned absences apparently cost the show thousands of pounds and cause difficulties when it comes to the programme's tight schedules.
The actor is now engaged to long-term partner Jo Mas, 37, - mother of his daughters Dani and Sunnie - after she proposed to him on Valentine's Day. According to their daughter she's not keen on him getting intimate on-screen with his co-stars.
Sunnie said: "Mummy doesn't like him doing it and it's really disturbing because he's got bad breath."
An EastEnders spokeswoman told The Sun: "Danny is always a consummate professional on and off set and we've never had any issues with his attendance."
Danny and Sunnie will appear on Big Star's Little Star on March 18 on ITV.