All users of the kamehameha in Dragonball Z

In Dragon Ball Z, the Kamehameha is the franchise’s most iconic energy technique: a focused ki wave created by Master Roshi and later reproduced by fighters who trained in the Turtle School line—or by characters who can copy techniques after seeing them.

If we put together every character shown performing the Kamehameha across DBZ (including fusions and imitators), the list is:

Master Roshi, Goku, Gohan, Krillin, Yamcha, Goten, present Trunks, Gotenks, Vegito, Gogeta, Cell and the Cell Juniors, plus Majin Buu in moments where he imitates it.

In the end, what makes the Kamehameha so memorable is exactly that: it spans generations, passes from master to student, returns through fusions—and even shows up in the hands of villains who learn by copying.