The SCV is the terran worker unit. SCVs count as a biological and mechanical unit; they can be healed by medics and other SCVs, but are also vulnerable to a wider range of abilities. The SCV has more hit points than the drone and probe, which may be useful when repelling early game rushes. An SCV may defeat a basic zergling if the SCV attacks first. This also makes SCVs less vulnerable to raids than their counterparts, since they take more hits to defeat. SCVs have the ability to carry campaign items such as psi-emitters or data disks. It is voiced by Glenn Stafford.