Ash -
https://www.newgrounds.com/art/view/emperorbismark/ash-vs-houndclops

Blossom Rosebud -
https://youtu.be/00uCnqQE0vs

Bucket -
https://www.newgrounds.com/art/view/thedillboi/crab-5-pit-entry-ref-sheet

Captain Cheese -
https://www.newgrounds.com/art/view/dforme5/c-r-a-b-captain-cheddar

Chad Lively -
https://boards.4chan.org/ic/thread/7893494#p7923451

Clarity -
https://www.newgrounds.com/art/view/oncehere/clarity-in-c-r-a-b-5-introduction

Cooler -
https://descrabv.thecomicseries.com/comics/1/#content-start

Doe Deerly -
https://www.newgrounds.com/art/view/guysingerii/crab-5-entry

Foxglove -
https://www.tumblr.com/bloofbloofbloof/810384254272995328/audition-for-comicsandrandomartbattles

Illwill -
https://www.newgrounds.com/art/view/corncobbro/crab-5-pit-entry-illwill

Janitor -
https://www.newgrounds.com/art/view/justajanny/crab-5-prologue-janitor

Hiragi Junko -
https://boards.4chan.org/ic/thread/7893494#p7897307

Leon Neumann -
https://www.newgrounds.com/art/view/lucisdoom/crab-pit-5-entry

Locket in the Woods -
https://www.newgrounds.com/art/view/thecittiverse/locket-v-houndclops-crab5-pit-entry

Ocho -
https://boards.4chan.org/ic/thread/7893494#p7914916

Rachel Envy -
https://www.newgrounds.com/art/view/xperson5467/crab-5-prologue-envious-beast

Saki -
https://boards.4chan.org/i/thread/832006#p832150

SHAE -
https://www.newgrounds.com/art/view/cheesyboy888/shae-s-emergancy-pit-entry-comic-for-crab-5

Skatorstick -
https://boards.4chan.org/ic/thread/7893494#p7922019
https://boards.4chan.org/ic/thread/7893494#p7922295
https://boards.4chan.org/ic/thread/7893494#p7922310

Claymore Simments -
https://www.newgrounds.com/art/view/psychostatic12/crab-5-pit-entry-all-gas-no-breaks

Sonata -
https://www.newgrounds.com/bbs/topic/1555648/3#bbspost28284533_post_text

Stub -
https://www.newgrounds.com/art/view/bobberatt/entry-1
https://www.newgrounds.com/art/view/bobberatt/stub-entry-2

Tobias Sawyer -
https://www.newgrounds.com/art/view/qorybraindamage/crab5-pit-entry-tobias-sawyer

Trixxy Rabbit -
https://www.newgrounds.com/art/view/graphic-oz/crab-5-pit-entry

Zakal -
https://www.newgrounds.com/art/view/yourworstdirector/crab-5-entry-zakal

(Unnamed Girl) -
https://www.newgrounds.com/art/view/scarimb/comic-battle

Has a completed pit entry but not publicly posted:

Natum -
https://www.newgrounds.com/art/view/mudhutgrug/comic-crab5-character-reveal-part-1

Saif -

Pier Trissan -

(Another unnamed girl) -