To do this, go to the hub right off the dock (or underwater area). You do not have to walk around, you just need to change to each of these characters while standing on the bottom.
Note these are the crews of the first and second movies. This is the order they appear on the character list (from left to right and top to bottom).
Bootstrap Bill Turner
Syrena
Koehler
Twigg
Mallot
Scratch
Bo'sun
Clubba
Grapple
Jacoby
Jack Sparrow (Cursed)
Maccus
Clanker
Jimmy Legs
Koleniko
Wyvern
Angler
Hadras
Crash
Penrod
Davy Jones
Quartermaster
Gunner