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Jarva Slade was the Warehouse Executive for the Kerb!am shipping corporation.
Despite his initial cold, uncaring manner he was worried about recent disappearances of many of his staff. He kept a hand written tally of the missing in a locked filing cabinet in his office because he suspected the corporation’s computer system may have something to do with the disappearances and didn’t tell Judy Maddox because he wasn’t sure if she could be trusted or not while he conducted his investigations.
When Team TARDIS arrived, Slade suspected them of being the culprits while they suspected him until both sides explained themselves.
After that Slade helped the Doctor investigate the losses and they discovered the robots were being turned into an army to despatch high explosives to their customers in order to stop automation. In the aftermath of Charlie Duffy’s death, Slade promised to help Judy ensure a greater human workforce at Kerb!am after seeing what Charlie had planned to do to thousands of people (Kerblam!)