One of Vigo Antonin's hired guards that work in his palace.
Major Story Arcs
Star Wars: Jango Fett
When Jango Fett goes after Vigo Antonin, Gnarhk is the last guard between Jango and the Vigo. Jango is able to sneak up behind Gnarhk and kill him with out Vigo even knowing that Gnarhk wasn't even at his post.