Genevieve Knight Hannelius (born December 22, 2002), credited and known professionally as G. Hannelius (or G Hannelius), is an American teen actress and singer-songwriter. She currently stars as Avery Jennings in the Disney Channel sitcom Dog with a Blog. Prior to this, she had recurring roles in the Disney Channel series Sonny with a Chance and Good Luck Charlie. She has also starred in Leo Little's Big Show and has done voice work as Rosebud in the Air Buddies films. She also guest starred in Disney Channel's series Jessie.
Genevieve was born on the 22nd of December in 2002 in Boston, Massachusetts. She moved to Southern Maine at the age of one, in 2003. Genevieve started acting at a very young age. Her theater roles included Madeline in Madeline's Rescue and Jenny in Tales of a Fourth Grade Nothing with Musical Theater. She lived in Calfornia for three months at the age of three or four for auditions. In 2008, when she was 6, Genevieve successfully made progress and amazed lots of people. Therefore, her family decided to move to Los Angeles, CA.
G.Hannelius played Courtney Patterson on Surviving Suburbia. She had a recurring role on Sonny with a Chance, a Disney Channel Original Series, as Dakota Condor. Genevieve has also played Jo Keener in Good Luck Charlie and a crazed fan in Hannah Montana. Hannelius was the voice of Rosebud in the 2011 movie, Spooky Buddies. In the summer of 2005, she played Madeline in the Children's Theater of Maine's production of Madeline's Rescue. She is an alumna of the Los Angeles based Young Actors' Studio. In April 2011, G. realeased her first ever songs, "Staying Up All Night" and "Just Watch Me" on iTunes. She is currently an unsigned artist.