They have arrived!

Parents, grannies, grandads, sisters, brothers, boyfrinds and girlfriends;in fact anyone who knows them, they're here.
Cassie's crew left a day earlier and arrived a day later. Cassie's crew stayed five star in Nairobi while Nicki's gang stayed no star in Lilongwe and had a ball.
We got seven big pizzas in the A1 and there appears little will be left for McCleod the watchman. If we go by all they ate, they're all in top form.
All go for 8am
Who are they?
The fourth crew of Easter volunteers from DIT and what a crew?

The other side of the table!