Professor Crumbs MBTI Personality Type

Personality

What personality type is Professor Crumbs? Professor Crumbs is an ISFJ personality type in MBTI, 1w9 - - in Enneagram, in Big 5, in Socionics.

I have a difficult time seeing Ti inferior for this guy, that being said he’s incredibly old meaning his inferior function could be developed. Fe and Si both make sense but I don’t think he’s intense enough to be Fe dominant?

Biography

Television Characters Similar to Professor Crumbs

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