The first season of premiered on April 4, 2010, on Disney Channel . The show follows the Duncan family in Denver, Colorado, as they adjust to their fourth child, baby Charlotte "Charlie" Duncan. A central theme is the video diary created by teenage sister Teddy, who records advice for Charlie to watch when she is older, always ending with the catchphrase, "Good luck, Charlie". Core Cast and Characters
( Bridgit Mendler ): The responsible older sister who creates the video diaries. Good Luck Charlie - Season 1
( Mia Talerico ): The adorable new baby who was 9–11 months old during filming of the first season. The first season of premiered on April 4,
( Bradley Steven Perry ): The mischievous 10-year-old middle child who initially struggles with being overlooked after the baby's birth. Core Cast and Characters ( Bridgit Mendler ):
( Leigh-Allyn Baker ): The energetic, sometimes competitive mother who works as a nurse.
Season 1 consists of 26 episodes. Notable early episodes include:
( Jason Dolley ): The oldest brother, often portrayed as well-meaning but dim-witted, who plays in a band.