Daniel Cooper was a warehouse worker for the Kerb!am shipping corporation. He had a daughter back on Kandoka whom he didn't often get to see. He channeled most of his wages into an education fund for her. Dan wore a necklace made by his daughter.
He was later killed after being used as a test subject for Charlie Duffy's exploding bubblewrap and his remains were liquidised along with the rest of the missing people. His necklace was later found by Yasmin Khan, who later returned it to Dan's daughter. (TV: Kerblam)