A common form of naming characters: giving them the partial or modified name of real-life celebrities or historical figure. May overlap with Shout-Out Theme Naming if repeated across a group.
One way would be giving the group a set of names which, when combined, form the name of a famous person. An advanced version gives a person the same first name as a famous person and has their last name included as a middle name. Another variation is to give a group of characters the first names of a well-known group, such as a group of friends named John, Paul, George, and Richard/Ringo, after The Beatles.