•
Iver (performed by
Don Austen) – The purple leading male Hoob figure of the trio who has orange ears. He is very punctual and business-like, but likes to have fun, too. Iver is a great doer, but sometimes he tends to be a bit of a worrier. He is also quite bossy, which often irritates Tula and Groove. •
Groove (performed by
John Eccleston in Series 1-3, Mark Jefferis in Series 4 and 5) – The green male Hoob with his green Twizzletuft covering his eyes who is always cool and relaxed, and a little slower than the others. This can result in him making mistakes which frustrate his friends, but he always makes up for this in the end. He is also a little greedy and shy and a bit more hesitant to leave the Hoobmobile. He has a talent for making music, and he enjoys collecting things. •
Tula (performed by
Julie Westwood) – The pink female Hoob on board. She is sympathetic, caring and enthusiastic, though she's sometimes a little tiring to have around. Tula is very creative and loves arts and crafts. •
Roma (performed by Gillie Robic) – The orange female explorer Hoob who travels around the world, gathering information for the Hoobopaedia by talking to the Tiddlypeeps. Roma does neither live in nor drive the Hoobmobile, but she frequently reports all her discoveries to Iver, Groove and Tula through video messages. Sometimes Roma visits the Hoobmobile to help them with their questions. Roma drives and rides a motorcycle called a Hooby Picki Picki which is powered by one unnamed Motorette. In some episodes, Roma talks to the Tiddlypeeps. •
Hubba Hubba (performed by Mark Jefferis in Series 1-3 and some episodes of Series 4, Brian Herring in Series 4 and 5) – The blue male leader of the Hoobs. From his home base in Hoobland, he updates the Hoobopaedia with all the info that Iver, Groove and Tula collect during their stay in our world. In the Series 5 episode "The Big Bonk", Hubba Hubba comes to visit the Hoobmobile and talks to the Tiddlypeeps on the Peep Planet and does Hoob News all by himself. Though he did get lost causing the other three Hoobs to enlist Roma to find him. Given his rather
eccentric twizzletuft and endless quest for knowledge, it is highly likely that he is some sort of
scientist in Hoobland. •
The Motorettes – A race of robotic creatures. Three Motorettes operate the engine of the Hoobmobile by singing and playing musical instruments while one Motorette operates Roma's Hooby Picki Picki by dancing along to the music track. •
Tootle (performed by Rebecca Nagan) - A female Motorette who is blue cyan/lime green. •
Timp (performed by Wim Booth) - A female Motorette who is yellow/orange red. •
Twang (performed by Mark Jefferis) - A male Motorette who is magenta/purple. •
Unnamed Motorette - This is the other Motorette that is yellow (resembling Tootle, Timp and Twang) and powers the Hooby Picki Picki. •
The Hoobydudu – A robotic primate that hatches from an egg who lives in Hoobland with Hubba Hubba and Auntie Hattie. He changes from being a screamer to being a giggler when he's cuddled and cheered up by either Auntie Hattie or Hubba Hubba. ==Episodes==