It's the reality TV series that dished up its fair share of cat fights.

But it appears the drama has proved too much for Real Housewives Of Sydney, US networks rejecting the chance to broadcast the series, The Daily Telegraph reports.

The shock decision comes as Foxtel concedes some of the housewives have 'no redeeming features', hinting at a major cast overhaul for season two.

'Behaviour throughout the series did go too far': Foxtel hints at Real Housewives Of Sydney cast overhaul after US networks reject the series because cat fights were 'too extreme'

While The Real Housewives Of Melbourne has been broadcast in US primetime, American TV networks shunned the Sydney series for being 'too extreme' and not featuring enough lighthearted moments.

The disappointing decision has caused Foxtel's head of television Brian Walsh to concede he is concerned about the cast, hinting changes would have be made to the housewives line up.

'A lot of the women in this show were nasty for nasty’s sake and have no redeeming features,' he said.

Too heavy? American TV networks shunned the Sydney series for being 'too extreme' and not featuring enough lighthearted moments

'A lot of the women in this show were nasty for nasty’s sake': Foxtel's head of television Brian Walsh voiced concern about the cast

'I particularly felt Lisa Oldfield and AthenaX Levendi were driving their own agendas.'

Brian said he would be steering changes in the second series to make sure the women were better behaved and more friendly towards each other.

'I’ve raised my concerns with the production team from this season. I felt the bad language and behaviour throughout the series did go too far,' he told News Corp.

Driving her own agenda? Brian accused Athena of having an ulterior motive for appearing on the series

Switching things up? Brian said he would be steering changes in the second series to make sure the women were better behaved

The first season of RHOS features its fair share of dramatic moments, with much of the fighting involving Athena and Lisa verbally sparring with other housewives.

Fights between the two women and the rest of the cast, in particular Krissy Marsh and Victoria Rees, have since spilled off screen, with Victoria filing a police report accusing Lisa of online bullying last month.

Meanwhile Krissy reignited her feud with Lisa this week, telling News Corp she continues to call her a 'sl*t' and claiming most of the housewives would prefer her not to return for season two.