alright its smiling friends japanese dub guy here to YAP!!!!

personally i think with pim being australian while charlie is american allan seems like an immigrant to america but clearly trying to emulate the accent and glep being god knows what. i think itd be funny if pim spoke in kansai dialect. im literally doing this just because hes australian and i think its the funniest shit ever. also i think he would use 僕 and probably あなた for others to be polite.. also i think he would be very excited all the time with the emphasis sentence end particles everywhere
charlie i think just kinda talks like a japanese guy trying to sound cool so obv hes got the オレ out, prob calls ppl おまえ, i think hed have the ぞ at the end and turn ない into ねぇ n shit...

i think allan would be kind of like a non native japanese speaker? obviously knows the language but the sentence structure may be slightly unnatural and i think hed use 私(わたくし) and prob call ppl あなた. also i think hed use ます for literally everything bc to me it gives him that deadpan vibe he has in the show

i have no idea about glep bc he speaks gibberish in the show and im not sure if in a japanese dub he would keep doing that or theyd just get him to do a different language?? i thought itd be funny if he spoke korean but again i dont want it to imply that like korean is gibberish so yea. im not really sure about that one

also heres some dialogue i translated because i was bored on a 3 hour car ride. im not Too familiar with kansai dialect rules and i did have to consult with resources on it just so it wouldnt sound stupid but it probably does sound stupid. um i did mostly try to have the original meaning instead of localizing but someone could prob do better than me. anyway heres the i love kids dialogue the twig song and the i believe in destiny line tled by yours truly
ピム:「子供大好きわ、チャーリー! 子供大ー好きわぁぁ!」
チャーリー:「ピム、えーと、オレならそいつ肺の上部で叫んだりはしねぇぞ...」
枝好き、枝好き、僕は枝拾う好き
一本枝 二本枝 三本枝 四本
枝好きもっと頂戴いい
それが僕とあなたの違いだっせ、チャーリー！僕は運命を信じとうわ！