Both twins are interested by the types of aircrafts which use Harefield. They also possess a bit of sibling rivalry from time to time.
Ben and Lucy have been appeared in the following episodes:
- Series 1 - Pippa Arrives, Chuck Comes Unstuck, Budgie's Blizzard, Ice Work, Budgie, Budgie Takes A Catch, The Air Show, Boots, Boats, and Budgie, Copters and Robbers, Daydreams & Candyfloss, Down on the Farm
- Series 2 - Aliens Have Landed, Who's A Clever Budgie?, The Balloon Goes Up, Surprise, Surprise, Budgie's Opening Goal
- Series 3 - Boom Boom Budgie, Writers in the Sky, Double Trouble, Eye in the Sky, Chuck's Buddy, Plane Silly, The Plane Who Cried Wolf, The Runaway Train, A Tail of Woe