Color points on a map concerning different values in a column

[andresrcs]

@Trungsisters55

I would like that points are colored concerning the type of actors (listed in the column ACTOR1)

You just have to map that variable to the colour aesthetic, with something like this

geom_point(data = df1, aes(x = LONGITUDE, y = LATITUDE, colour = ACTOR1), size=1, alpha=0.5)

If you need more specific help, please provide a minimal REPRoducible EXample (reprex) including sample data on a copy/paste friendly format as explained in the link provided.