Sherman Priest is a villager of Aru Village who had to suffer from Oolong's early shenanigans.:

Sherman Priest has a daughter named Pochawompa that Oolong wanted to kidnap and marry. When Goku came to the village, Sherman thought he was Oolong at first and attacked him. The Priest thanks Goku when he stops Oolong's plan, and takes him away from the village.

Sherman can be seen in the audience of the 21st World Martial Arts Tournament along with Grandma Paozu (the Old Lady who gave Goku and Bulma the Six-Star Dragon Ball).

He also appears at the Protective Dome's unveiling with Grandma Paozu and Pochawompa in the Dragon Ball Z filler episode "A Girl Named Lime".

(Source: Dragon Ball Wiki)