The other members of the All-Stars team are West Indian Shivnarine Chanderpaul, former Aussie opener Justin Langer, veteran Lankan batsman Sanath Jayasuriya, England pacer Matthew Hoggard and former Kiwi skipper Stephen Fleming.
Apart from the All-Stars squad, the two-day tournament will feature six Test-playing nations and hosts Hong Kong.
"I'm delighted to play for the All-Stars this year. Of course, I've played with Sanath many times before and we'll enjoy teaming up again, but the rest of the guys have been respected opponents for many years so it will be awesome to be in the same team as them for this tournament," said 34-year-old Vaas.
"We've got a very strong side, but we also know all the other teams will be trying extra hard to beat us." Meanwhile, South African all-rounder Henderson, who has been a revelation with both bat and ball for English Twenty20 Cup champion Middlesex this year, said with the likes of Jayasuriya, Chanderpaul and Fleming in the squad, the All-Stars have a good chance of winning the event.
"We've got a great chance to win the tournament, but we know we're in for three tough pool games. Sri Lanka are the defending champions, Australia are always competitive and Hong Kong have scored some upsets down the years," he said.The All-Stars have been drawn in the Sobers Group alongside Sri Lanka, Australia and hosts Hong Kong, while India, Pakistan, England and South Africa complete the Bradman group.