From BiblePortal Wikipedia

Easton's Bible Dictionary [1]

 Luke 22:59 Acts 2:7 Acts 1:11 Matthew 26:69 Mark 14:70

This was also one of the names of reproach given to the early Christians. Julian the Apostate, as he is called, not only used the epithet himself when referring to Christ and his apostles, but he made it a law that no one should ever call the Christians by any other name.

Holman Bible Dictionary [2]

 Mark 14:70 Acts 2:7 Matthew 26:69 Luke 23:6-7 Acts 5:37 Luke 13:2 Luke 13:1 John 4:43-54