Jenna Said, 39, from Plymouth, Arrone Mukuna, 25, Jean Mukuna, 23, from London, Adedoja, Bakas, Augustus, Wilson, Sungum and Kalemba have been charged with being part of an organised crime gang.
Adedoja, Bakas, Wilson, Jean Mukuna and Arrone Mukuna are all charged with attempted kidnapping and attempted GBH with intent.
Opening the case, prosecutor Jo Martin KC, said father-of-two Cahalane told police the man behind the attack was a man called Ryan Kennedy, known as “Frost”, who he was in “significant debt” with.
She told the court there was “no doubt” Cahalane and Frost, who is thought to be in Dubai, had exchanged 2,000 WhatsApp messages.
The pair met as children and grew up together on the Rockingham council estate in south-east London, near Elephant and Castle.
Kennedy, who was younger than Cahalane, had become his “boss” and he was “not happy” with the amount of money Danny owed, some of which he had gambled, Martin said.