When R.J. was younger, their cousin took them to see an Insolent Children concert. The band that opened was ANARCHYOPTERYX, and due to their lyrics and a magazine to the face, R.J. gained an understanding of themselves and the power of music. Since then, they have taken a vow of song and silence, to save their words for only things that are truly metal. Irony is extremely metal.
R.J. is by far one of the quieter members of Johnny's gang, rarely speaking. They seem to be just as loyal to Johnny as the rest of his gang.
R.J. seems to be just as loyal to Johnny as the rest of the gang, assuring to them that they "Wouldn't ditch [him]" when Johnny mentions they could have simply gone home directly from detention rather than continue to hang out with him. They apparently have "Eternal unspoken dibs on the shins of Johnny's victims".
R.J. is friends with their fellow underlings, hanging out with them and Johnny. They stack with the others during the "Friendship Fusion" technique.
- R.J. has been shown to have a sparkly green mohawk under their hoodie.
- R.J. has been confirmed as nonbinary originally by Word Of God and later on in the comic on page 187 of chapter 5, and uses they/them/theirs pronouns.