Three people I'd never heard of, one vaguely and Lee Mack who I'm not a great fan of, so bad start for me.
Having said that, I don't think I would have felt any different if I'd been a fan of all five of them, as, sadly, I found the whole thing lacking.
Thinking back over some of the previous hilarious series - this doesn't have the spark; but always give things second and maybe a third chance, as it may improve.