|Behind the scenes|
|First Appearance:||Tintin and the Picaros|
|Last Appearance:||Tintin and the Picaros|
Colonel Alvarez is a colonel in the San Theodorian army who works as General Tapioca's Aide-de-Camp in Tintin and the Picaros. He is also in the league with Colonel Esponja, Chief of the San Theodorian Security Police, who is actually the Bordurian Colonel Sponsz and old foe of Tintin.