User blog comment:Dr. Feelgood/Modern Warfare 3: London Trailer/@comment-4350686-20111015140538/@comment-3244193-20111015143651

Wallcroft is a character from Call of Duty 4, who is returning as a bigger character in MW3. In COD4 he was in the level "Crew Expendable". He is voiced by Carig Fairbrass, who voiced Gaz (Call of Duty 4) and Ghost (MW2).