Plot markers For QuantilePlot

I want to change the plot markers of the data points in QuantilePlot. This seems pretty straightforward:

QuantilePlot[                 RandomVariate[NormalDistribution[0, 1], 32], NormalDistribution[mu, sigma],                 ReferenceLineStyle -> Directive[Red, Dashing[{Large}]], PlotMarkers -> {"\[EmptyCircle]"}             ]  

However we can see that we get a "Null" plot marker at either end of the reference line: enter image description here

Is there a specific command required in QuantilePlot to customise the plot markers for the data points?