“Here was Sherlock Holmes fighting off four attackers just round the corner from Baker Street," Dias told the Sun. "I had hold of one lad and Benedict another. He seemed to know exactly what he was doing. He was very brave.
“Benedict was courageous, brave and selfless. If he hadn’t stepped in the cyclist could have been seriously injured.”
Deliveroo thanked Cumberbatch in a tweet Saturday.
"Deliveroo riders are heroes -- their safety is our priority and any violence against them is totally unacceptable," the delivery company said.