I recently saw actress Maree Cheatham (Choctaw/Creek) on a repeat of CBS's Cold Case from 2005. Curious, I looked her up on IMDB.com to see what she's been doing.
Cheatham has been busy. In 2007 she performed in Boston Legal (ABC), two episodes of In Case of Emergency (ABC), The Riches (FX), Til Death (Fox), and Rules of Engagement (CBS). I don't know if she appeared in the 2006-2007 season or the 2007-2008...but then, I don't know if the 2007 American Indians in Film and Television report card covered one or both of these seasons either. In any case, the report didn't mention any of Maree Cheatham's roles...even the ones on "major networks." Another omission for the report of many omissions.
Incidentally, Cheatham has been working since she appeared in Ben Casey in 1964. Quite a long career.
For more on the subject, see TV Shows Featuring Indians.