umbra: he has an accent. it's a weird mixture of a british and nigerian, but it sounds really proper and condescending. matthew learns that this is the royal fae accent. umbra uses pretty formal language, but lapses into filler words when hes rattled. has a deep voice

victor: filler words like "uh" and "um" all the time. stutters and doesnt like to finish his sentences. his voice is raspy and quiet.

aunora: has the same tone and vocabulary of a frat boy. pretty crude, simple words, doesnt use any complicated words. loud, deep voice.

seraph: weird, formal stilted speech. doesnt use contractions. however, he likes to throw in awkward slang to try to be like victor. airy, strange voice.

matt: pronounces his w's like v's. pretty prevalent german accent. likes to use slang. voice fluctuates- higher when hes relaxed, deeper when hes serious

esper: actually speaks like a normal person, compared to other spirits. very soft and passive in his speech. quiet, feminine voice.