Hunter Valley wedding bus crash driver has been hit with more than 50 extra charges

An additional 52 charges have been laid against Brett Button, the bus driver who was behind the wheel of a coach that crashed in the Hunter Valley in June.

The bus was carrying wedding guests from nearby Wandin Estate winery to Singleton, when it rolled on a roundabout near the Hunter Expressway at Greta.

Ten people were killed while dozens others were injured.

The next day, 58-year-old Button was charged with 10 counts each of dangerous and negligent driving occasioning death.

This week, 52 fresh charges have been added, including dangerous driving occasioning grievous bodily harm, negligent driving occasioning grievous bodily harm and causing bodily harm by misconduct, most of them relating to the guests who were injured.

Police allege Button was driving too quickly and told passengers to 'fasten your seatbelts' before the vehicle lost control at a roundabout, slammed into a guardrail and tipped onto its side.

Button was released on strict conditional bail after spending one night in custody.

He is due to appear at Newcastle Local Court on August 9.

Kane Symons, Angus Craig, Rebecca Mullen, Darcy Bulman, Nadene and Kyah McBride, Andrew and Lynan Scott, Tori Cowburn, and Zachary Bray were killed in the crash.