Pier Alexander Palaez, 44, and 32-year-old Edwin Riascos Romero have been charged with aggravated robbery in connection with three robberies and two burglaries in Plano and similar crimes in Richardson and Frisco.
According to court documents, the two suspects are part of a criminal enterprise that also targeted Asian neighborhoods five years ago.
Police records say in some cases, the suspects used a gun and a screwdriver to threaten those who were home.
Police say they found the suspects by identifying their getaway car on a security camera.
Both suspects are being investigated as illegal immigrants from Colombia.