The McCullum brothers, Brendon and Nathan, all-rounder Ian Butler and top-order batsman Aaron Redmond have made the 15-strong side.
Butler, Redmond, Kyle Mills, Jesse Ryder and Jacob Oram are all making their way back from injuries and will need to pass fitness tests before the squad departs for the Caribbean.
Redmond has been troubled by a stomach complaint and has barely played any cricket this summer.
But in his only first-class match for Otago this season, he cracked a century.
Butler has also been sidelined with a niggly adductor tear and painful pubic bone.
The Otago pair will have a run for University-Grange in the national club championships in Auckland next week.
Butler is registered with Dunedin club Pelichet Bay but has received a dispensation from New Zealand Cricket to play in the tournament.
Gareth Hopkins and Scott Styris will also play in the national championship.
Ryder needed surgery to correct an abdominal problem but returned to first-class cricket this week and promptly bludgeoned a century.
The Black Caps side features one debutant, with Canterbury batting all-rounder Rob Nicol gaining a call-up.
Nicol scored 237 runs in the HRV Cup at an average of 23.70 and took eight wickets at 36.75 with his handy off-breaks.
"We're excited about him.
He's a good multi-skilled cricketer and with the conditions in the West Indies he'll add value as a batter and a guy who can bowl spin," Black Caps coach Mark Greatbatch said of the former Aucklander.
"He's quite a dynamic player and he's got better in the last 18 months."
Shane Bond will spearhead a pace attack which includes Mills, Oram and Tim Southee.
But it is the batting line-up which contains the most threats.
Ross Taylor is building a reputation as one of the best twenty/20 batsman in the world and Brendon McCullum is capable of destroying attacks.
And with Ryder back in the mix, New Zealand has plenty of strike power.
"We are excited about the side and believe that they will go well in the tournament," Greatbatch said.
"We have a mix of players who are competitive on the world stage in the twenty/20 format.
"Obviously we will need to be consistent with our performances and build momentum through pool play.
"We think we have some very dynamic batters, who can be lethal in this form of the game.
"Our bowlers are also very effective twenty/20 performers."Auckland seamer Daryl Tuffey and Otago batsman Neil Broom were not considered because of injury.
The tournament begins on April 27, with the final on May 16.
New Zealand will be based in Georgetown, Guyana during pool matches and play Ireland, Afghanistan, Sri Lanka and Zimbabwe.
The Black Caps then shift base to Barbados where they will play either South Africa or Afghanistan, then either Pakistan or Australia.
The team then moves to Saint Lucia to play play either England or Ireland, before the competition moves to the semifinal stage on May 13.
New Zealand
Twenty/20 World Cup squad
Daniel Vettori (captain), Brendon McCullum, Jesse Ryder, Aaron Redmond, Ross Taylor, Martin Guptill, Scott Styris, Rob Nicol, Jacob Oram, Gareth Hopkins, Nathan McCullum, Ian Butler, Kyle Mills, Shane Bond, Tim Southee
