Spotted Eagle's prayers were in authentic Lakota Sioux language. Sioux do perform prayer rituals with a pipe.
In the '70s, most child "Indian" characters on television were played by Mexican actors, such as Claudio Guzman and, here, Caesar Ramirez. "Indians" from USA and "Indians" from south of the USA are the same exact race, whether Sioux, Iroquois, Cheyenne, Apache or Mexicans, Aztec and Mayan. They are simply different "tribes" speaking different languages because Spain conquered Central and South Americas and the English did the USA. (The same is true for those from Canada such as Nez Perce and Inuit: they are the same as those originating from Mexico, just different "tribes", conquered by different European nations, which is why they either speak English, Spanish or French.)