Hook Hand's singing voice in this episode is provided by Fred Tatasciore, while his speaking voice is Brad Garrett, reprising his role from the original film. Oddly, however, Garrett did the singing for the character in the movie.
In the German dub of Tangled, Hook Hand's singing voice was Bernd Wippich. In the series, it's Thomas Amper, who was the German voice of Big Nose.