Question: who were the first professional dancers on dancing with the stars?
Answer: Season 1. Cast (celebrity and pro partner): Trista Sutter and Louis van Amstel, Evander Holyfield and Edyta Sliwinska, Rachel Hunter and Jonathan Roberts, Joey McIntyre and Ashly DelGrosso, John O'Hurley and Charlotte Jorgensen, Kelly Monaco and Alec Mazo.