They are
Liza,Bethany,Issac,Sterling,Brian and Talia.
The winner of Fetch! with Ruff Ruffman season 4 is Liza.
In bouston, massachusets.
Fetch! with Ruff Ruffman season 4 will air on September 14, 2009 with a sneak peek at the season on September 11, 2009. (source in related links below)
It will be on September 7th i think...
FETCH with Ruff Ruffman - 2006 Season Four Is Canceled 4-1 was released on: USA: 11 September 2009
Season 4 of Fetch! with Ruff Ruffman will premiere on September 14th, 2009.
October 4, 2010 it will be the final season.
Sterling was 13 when he was on fetch. now he is 14.
Bethany and Mike are tied for youngest on fetch with ruff ruffman, and Isaac and Anna are tied for oldest on fetch with ruff ruffman. Anna=season 1 Mike=season 2 Bethany+Isaac=season 4
Talia, Liza, Isaac, Bethany, Sterling, and Brian are the season 4 contestants.
FETCH with Ruff Ruffman - 2006 B-L-T- For Breakfast was released on: USA: 8 June 2006
FETCH with Ruff Ruffman - 2006 Ruff Needs His Herring Checked 4-10 was released on: USA: 7 October 2009