Barmy Aunt Boomerang was a children's comedy series which aired on BBC1 in the United Kingdom from 16 September 1999 to 14 December 2000. Sebastian's world is turned upside down by the arrival of his unconventional Australian aunt Boomerang. It is revealed early on in the series that Aunt Boomerang is in fact a ghost, She was starring in an Australian soap when she was killed on set. She now acts as something of a "fairy god-mother" to Sebastian. The show ran for two series.

The series also featured actor Alex Harvey, who is the son of the late Scottish rock singer and leader of The Sensational Alex Harvey Band. Alex Harvey Junior played the part of a police officer named Sergeant Keen.