Which retail entrepreneur joined the British show Dragon's Den as a Dragon in 2015?

Touker Suleyman joined the British show Dragon's Den as a Dragon in 2015.

Touker Suleyman is a British-Cypriot entrepreneur and investor whose business career has focused heavily on fashion, clothing and retail. He became known for acquiring and developing brands, including the fashion retailer Hawes & Curtis and the womenswear company Ghost.

Suleyman joined Dragon's Den in 2015, bringing the panel experience in manufacturing, sourcing, wholesale and consumer retail. Those areas differ from the technology and media backgrounds associated with some other Dragons, making his perspective especially relevant to product and fashion pitches.

The year can be confused with the arrival of other investors because the panel changed several times during the programme's long run. The question refers to Suleyman's first appearance as a Dragon, not to the year he bought any individual retail brand.