Kraal Service Mechanics

The Service Mechanics were androids created by the Kraals for the purposes of their android infiltration plot, but wearing a motorbike helmet in lieu of a face. Much like the Autons, they had a gun built into their hand.
Podcast C083 The Android Invasion > > > > > > >

Doc and Sarah match wits with finger-blasting androids and two walnuts from space planning to invade Earth