How would one go about typing Gary, in the first place?
Gary is the only one I am pretty sure on the type so far.
Gary is very inwardly focused, in his own world most the time - IN
Very concise and rational/somewhat impersonal when he does say something (meow) - T
Always rebelling against any kind of structure and such - P
Gary - clearly INTP
As for the others, I am not very sure. They all seem very S/N balanced to me, and due to my own biases, I am afraid of incorrectly labeling a lot of them as N.
Spongebob - EnFJ (he is sometimes very externally focused, but uses N frequently, very much a "people-person," obsessively structured)
Patrick - ESFP (entirely outward focus on having fun with others except for when sleeping most the day, unplanned to the extreme)
Squidward - INTJ (very focused on his pursuit to be a great artist, no matter what others say, impersonal for the most part, grabs ideas out of nowhere, needs lots of alone time)
Plankton - iNtJ (very focused on getting the "secret formula," has elaborate plans A-Z, is by himself a lot but might not be alone if he wasn't so evil)
Mr. Krabs - eSTJ
Sandy - very tricky character... probably a balanced ESTP
~*all subject to updating*~