|Known relatives:||Jacob Balthazar (brother)|
|Behind the scenes|
|First Appearance:||The Broken Ear|
|Last Appearance:||The Broken Ear|
Simon Balthazar, also known as "J." Balthazar, is a local businessman and brother of the murdered artist, Jacob Balthazar. It is he who sells the genuine Arumbayan Idol to Samuel Goldbarr and relays this information about the whearabouts of the idol to Ramon Bada and Alonso Perez, and then Tintin.