Kylie’s snap causes a STIR: ‘Where’s Rob and who’s yer man on the left?’

Yesterday a whole host of US-based celeby-types were sharing pictures and clips of their Thanksgiving celebrations.There was turkey, there were pies of sorts, there was more turkey.

It all looked mighty like our own Christmas Day… albeit with no Mass and no hour-long Mrs Brown's Boys special.

And how lovely too to see the entire, quirky Kardashian-Jenner clan come together.

Youngest of the bunch Kylie was even happy to share an Instagram snap of her "blended" family.

In fact, just about everyone – Kim and Kanye; Kris and Kris's beau-of a year Corey Gamble; an accepted-back-into-fold Tyga; Khloe; all the grandkids, and even the once beleaguered Scott Disick – showed up en masse for the celebration.

Hosted by 65-year-old Caitlyn at her sprawling Malibu home, fans online were quick to ask the question on everyone's lips: just where is Rob Kardashian… and WHO is the guy on the far left of the picture?

Rob, of course, has largely retired from public life over the last couple of years – with the 28-year-old reportedly still battling with his weight. 

Indeed, many fans suggested that rather than step in front of the lens, the self-conscious Mr Kardashian would have been more comfortable in the role of photographer for the occasion. 

That doesn't, however, clear up the presence of that mystery man – although some observers suggested he was merely a close family friend who had been invited to attend the gathering.

Anyone know WHO he is?