The Ivy owner, billionaire Mike Ashley, and more Goldman bankers are being dragged into the BHS fiasco

The cast of characters involved in the inquiry into the collapse of BHS is getting more complicated than Game of Thrones.

The UK parliament on Thursday wrote to a further 15 people asking them to give evidence to the inquiry into the collapse of department store BHS, following Wednesday's explosive hearing.

Former owner Dominic Chappell, who bought the chain from retail tycoon Sir Philip Green last year for £1, told MPs this week that Sir Philip Green had become enraged when he heard about plans for a last-ditch bid to sell BHS to Sports Direct billionaire Mike Ashley to rescue the chain.

Chappell claims Sir Philip then blocked the sale and forced BHS into administration by calling in debt he was owed by BHS. Chappell also claimed Sir Philip had blocked him from speaking to the Pensions Regulator about BHS' huge pension deficit ahead of the takeover.

Politicians also heard new details of the intricate property deals that funded the BHS takeover and its subsequent working capital. Former BHS CEO Darren Topp also accused Chappell of threatening to kill him and having "his fingers in the till."

BHS collapsed into administration in April and announced it was closing for good earlier this month after a buyer for the business could not be found. 11,000 jobs are likely to go.

Here's the new and returning witnesses MPs have called, and a quick overview of who's already been called: