Main • Zig: A carefree alien with a heart of gold and a brain with the shape and processing power of a banana. He's not the brightest spark in the
Solar System, but is endlessly enthusiastic, curious and ready for whatever adventures come his way. • Zag: A classic older brother type; overconfident, thinks he smarter than he really is and acts older than his age. Zag is always immaculately groomed with purple fur with green spots and in terms of fashion is always "on trend". He also processes "super" manners, employed when getting around influential adults or stubborn neighbours. In the episode "DI Why?", it is revealed that Zag's middle name is Hilary. • Nellie: A fun pre-teen who helps her Dad out in the local
mini-mart. Nellie is opinionated and quick to pick apart Zig and Zag's Semi-thought-out plans, she usually redirects them on to the right path, even if unintentionally. She thinks Zig is cute and loves to play up to him with faux flirting to get a reaction but it always goes completely over his own head. She is an offhand with Zag as she doesn't like his affectations. More often than not Nellie becomes a valuable ally when things get really out of hand for Zig and Zag! She's probably the Z brothers' best friend on Earth.
Recurring • Mrs. Eyebrows: Zig and Zag's enigmatic next door neighbour, an elderly woman who has an imaginary cat called Mr. President. • Mr. Jones: Mr. Jones is a nervous, always running late type. His favourite thing of all is his ‘quiet time’, but that is more often than not ruined as Zig and Zag always run to him for any and every bit of ‘how things work on Earth’ advice. And despite his protestations, Mr. Jones has become their unwitting mentor. • Mrs. Jones: Mrs. Jones is the opposite of her husband; larger than life, enthusiastic and is always striving to be the perfect neighbour! She often lands on Zig and Zag's doorstep with some freshly baked beetroot
macaroons, so they ain’t complaining! • Brie and Stilton: are the Jones’ strange staring children. They never utter a word, all you ever hear them doing is breathing loudly through their noses. • Nellie's Dad: We never see Nellie's Dad's face. He is always stacking shelves up a ladder. He is always sent tumbling when Zig takes an item from the bottom of a recently stacked pile of goods, this is followed by Zag announcing over the shop's
Tannoy ‘Clean up on aisle three!’! • The Secret Agents: The two Agents work for P.A.N.T.S (Prevention of Alien Network Takeover Squad) Agent A. Gent is an old school
Man-in-Black, he has spent his whole career convinced that Earth is going to be invaded by aliens, but it never happened! He was just about to retire when Zig and Zag crash-landed in his neighbourhood. At last, the alien invasion he predicted is imminent! To get him out of the office and out of his hair his boss tasks Agent A. Gent and a level headed young operative Agent Honey to keep an eye on Zig and Zag... just in case. • Abs & Pek Von Pumpiniron: The Von Pumpiniron's are an ex-tumbling act who now run the local Megagym. They live next door to Zig and Zag, are super-sporty and highly competitive. It's a mystery to Zig and Zag whether Abs is male or female. Pek doesn't speak any English, however Zig somehow understands his every word. • The Marshmallow of Destiny: Zig has a marshmallow that he keeps in his anorak pocket. He only seeks the mallow's advice in times of extreme crisis. Zig is the only one who hears or sees the MOD imparting his wise advice. ==Production==