A quick and simple guide to finding Ranger Captains, contains spoilers.
Ranger Captain #1: Wallace
Captain Wallace is pretty hard to miss for the most part, located right outside of ‘Ranger Outpost’ where, you get your task of collecting stamps from the other rangers.
[Location]
[Activating the lever will rotate the bridge on the left (as it’s shown), allowing you to get to Wallace]
[Map Location]
Ranger Captain #2: Skip
[Captain Skip]
[Right next to ‘West Harbourtown’]
[Map Location]
[Fast Bulletino]
Ranger Captain #3: Zedd
[Captain Zedd]
[Little Tip]
[Map Location]
Ranger Captain #4: Judas
[Captain Judas]
[Map Location]
Ranger Captain #5: Clee-0
[Captain Clee-0]
[Map Location]
Ranger Captain #6: Lodestein
Once you’ve done that, you can either use your dash at the bottom of the stairs, propelling you to Lodestein, or use your magnetism ability to float over to him.
[Captain Lodestein]
[Lever under boulder]
[Little tip]
[Map Location]
Ranger Captain #7: Penny Dreadful
[Captain Penny Dreadful]
[Map Location]
Ranger Captain #8: Gladiola
[Captain Gladiola]
[Little tip]
[Lever used to float to Gladiola, it runs out relatively fast]
[Map Location]
Ranger Captain #9: Heather
[Captain Heather]
[Just keep going north from the Mire Sea campfire and you’ll find her]
[Map Location]
Ranger Captain #10: Buffy
[Captain Buffy]
[To the West (left) you’ll find a green button, that’ll allow you to float up]
[Floater]
[After getting up and crossing the wooden plank bridge, go up and then to the right, you’ll see a bridge like below, with a switch next to it. Toggle the switch and that’ll be your path to Buffy]
[Map Location]
Ranger Captain #11: Cybil
[Captain Cybil]
[Map Location]
Ranger Captain #12: Codey
[Captain Codey]
[You’ll need to climb up here, then climb up the wall to your left]
[Climb up here]
[The easiest way to get up, just need to climb]
[Map Location]
Thanks to Blank for his great guide, all credit to his effort. you can also read the original guide fromĀ Steam Community. enjoy the game.