Grima Wormtongue

Grima is an interesting side character, although he was never used that much he served a strange purpose. That being detecting if people were lying and randomly appearing out of nowhere to correct them. The first person he said was lying was angel. To give context, james was telling angel that her being completely silent during sex was removing the satisfaction out of it. Angel replied, "not my fault i just don't make noises that often." James then asked if she could control her talents and angel responded with, "i don't want to make noises... its embarrassing." Grima then appeared and shouted, THAT IS A LIE! 
Later on at 05/15/2022 Grima was attempting to condemn monika to the "basement," which was a bad place where people went when koby felt like torturing some poor souls. On the same day during another trial which involved judge judy, grima was attempting to condemn windu as he had attacked koby earlier in the day but was only revived because sayori had killed him to protect koby, Plus she was gonna kill herself if koby didn't revive windu anyway, (cause she's suicidal and a little bitch, also she felt guilty about it.) Regardless, judge judy let grima decide and grima said and i quote, "windu goes to jail cause screw him." Master windu attempted to then call grima and judge judy racist and get them cancelled but it failed. He then tried to escape but koby tripped him and knocked him out then judge judy sent him to the "special jail" where you get raped by tyrone and mr hobo. 
Grima continues to be pretty helpful to the heroes by telling them if people are lying or not. For example at 05/18/2022 markiplier tried to tell koby and sayori that classic was alive but luckily grima appeared and assured them mark was lying. Then at 06/03/2022 koby and grima tried to make kales cock go into natsuki, sadly they failed as kale was concerned with the fact that he had no condom on. 
Then when monika ratted out koby to kale for mind controlling her as the reason why she acted as a rapist, grima and i quote, "put his balls in kales mouth pretty much metaphorically saying that monika was telling the truth." While kale went to grima again after questioning koby, wondering if he was lying, he found grima dead. Monika said and i quote again, "grima lashed out at me with his saggy balls." (Dunno why grima did that but i don't blame monika for killing him... who knows maybe grima just had a spontaneous burst of horniness.)
Grima doesn't really do much else aside from appear during random events just to say if someone is lying but at least he's not a villain trying to rape/assault people 24/7. 
Fun fact: There is 2 instances where grima will lie, 1. he is mind controlled to do so, 2. for the sake of the plot aka plot shenanigan's aka bullshit.