Mustapha is Riad El Fenn’s go-to tour guide. Riad El Fenn is owned by the lovely Vanessa Branson, sister of Sir Richard (‘sister of Sir Richard’ has become part of her surname).
Here’s a documentary about Vanessa that aired on Holland TV, and our buddy Mustapha comes on the scene at 28 minutes and 39 seconds: Broers en zussen Vanessa Branson, de zus van Richard. Don’t worry if your Dutch is a bit rusty, you’ll only be lost during the voice-over narration bits. The Bransons and Mustapha are speaking English (with a sprinkling of Arabic for good measure):