Don Lane's son PJ is all grown up

PJ Lane in Channel 9's latest Underbelly installment. Source: Herald Sun

Luke Dennehy, The Sunday Herald Sun, reports

His father Don Lane was one of Australia's most-loved entertainers and now it's son PJ's turn to make an impact.

PJ Lane, 27, has had a dramatic transformation as one of the lead actors in the soon to be aired Underbelly: Badness series, putting on 18kg of muscle for the role.

It's a whole new look for Lane, who like his father is naturally tall and lean.

The role as muscle-bound security guard Michael Christiansen is Lane's most high-profile yet and he worked incredibly hard with hours in the gym and a protein diet.

"There was lots of weight training, supplements, eating lots of boiled chicken and broccoli, all the exciting stuff," Lane said.

"It was terrible, so much plain food for a long time.

"I was quite a boring person to be around."

Lane has been singing and doing shows for years but recently has focused on acting. The experience on Underbelly, alongside actors such as Jonathan LaPaglia and Matt Nable, was invaluable.

"To work with these guys was such a great experience," Lane said. "To even walk on set every day was such a great thing."

Underbelly: Badness is expected to air on Channel 9 after the Olympics.

The next Underbelly series will return to Melbourne where it all began. Underbelly: Squizzy Taylor will focus on 1915 and Victoria's infamous gangsters.