Police confirmed a man had been charged several weeks ago.
The accused, from Murupara in the Bay of Plenty, is due to reappear in the Rotorua District Court tomorrow.
He faces charges of driving with excess breath alcohol causing death and causing injury.
Roebuck's son Ant earlier told the Herald the pair had travelled to Tokoroa in a party of three couples driving campervans for a festival in the south Waikato town.
They were heading back to their campervans, which were parked around 400 metres from the pub, and crossing the road when they were struck by a car.
Roebuck had been in construction before he retired in 2014, and Ant took over the business.
The family has been a major player in the New Plymouth construction scene when Roebuck's father started Roebuck Construction in the 1960s.