User blog comment:Freddieisacutie/why i think icarly is so sucessful/@comment-2128395-20100910092417

Similar to many successful sitcoms, it's because of the cast ensemble. Look at the Friends series-- six actors/actresses co-starred for 10 years. If even one of them were not included in that ensemble, the show would not be as successful as it was. The same can be said of iCarly.