<P> The producers made the series with the intention of it airing in various forms internationally . Therefore, some characters & "Outer Space" locations where changed . (UK episodes where set in a lighthouse, German versions in a workshop) </P> <P> Gobo's Uncle Traveling Matt has gone to explore the human world (Fraggles call it Outer Space), and he regularly sends postcards back to Gobo . The name "Traveling Matt" puns on the film special - effects device known as a traveling matte . Matt calls the humans he meets the "Silly Creatures ." Yet despite his contempt, the interactions related in his postcards often show his own ignorance . For example, he once sees two teenage girls chewing bubble gum: when they blow bubbles, he believes that the "food" has made their tongues inflate and explode . </P> <Ul> <Li> Doc (portrayed by Gerard Parkes in the live - action series, voiced by John Stephenson in the animated series)--Doc is a man who is an inventor and a former barber . His workshop has a Fraggle Hole that leads into Fraggle Rock . Gobo must go out into Doc's workshop to retrieve the postcards from the wastebasket where Doc throws them . Doc remains unaware of the Fraggles' existence . In the second - to - last episode, he finally learns that the Fraggles exist and befriends them . Matt also returns home to Fraggle Rock . When Ned Shimmelfinney moves to the desert due to his health, Doc moves with him . Due to the wisdom of Marjory the Trash Heap where states "You cannot leave the magic," a magical portal opened up in Fraggle Rock that enabled Gobo and his friends to go to where Doc is currently living . In the animated series, Doc's head isn't shown . </Li> <Li> Sprocket (performed by Steve Whitmire in the live - action series, voiced by Rob Paulsen in the animated series)--Sprocket is Doc's dog . He has seen the Fraggles and tries in vain to prove their existence to his owner . Being a Live - Hand Muppet, Steve Whitmire is assisted in performing him by Karen Prell who handles Sprocket's right hand and wagging tail . He was designed by Michael K. Frith and built by Tim Miller . </Li> <Li> International Docs--There were different adaptions for Docs in different countries that aired Fraggle Rock where each one had their version of Sprocket: <Ul> <Li> UK Version--In the UK version, the Doc role was substituted for The Captain (portrayed by Fulton Mackay). He is a retired sailor who works as a lighthouse keeper at a rocky - sea lighthouse (which was portrayed by the St. Anthony's Lighthouse located near Falmouth, Cornwall) with his version of Sprocket . <Ul> <Li> P.K. (portrayed by John Gordon Sinclair)--The Captain's nephew who appeared in Season Three following the death of Fulton Mackay . </Li> <Li> B.J. (portrayed by Simon O'Brien)--The Captain's son who appeared in Season Three . In the second - to - last episode, B.J. finally learns that the Fraggles exist and befriends Gobo . Due to the lighthouse being automated with technology, B.J. and Sprocket had to move away . B.J. takes up a job as a property caretaker at a castle which is where he and Sprocket discover the second Fraggle hole . This is how Gobo and his friends were able to reunite with B.J. and Sprocket </Li> </Ul> </Li> <Li> German Version--The German version of Doc (played by Hans - Helmut Dickow) is similar to the US version of Doc . </Li> <Li> French Version--The French version of Doc (played by Michel Robin) who worked as a baker and a French alter - ego for Sprocket called Croquette . Doc inherited the home from his eccentric Uncle Georges (who was a noted inventor). Thus, when the frame story required the use of a mechanical device, Doc would merely find yet another of Uncle Georges' machines . Plot - lines also frequently involved the elegant but unseen Madame Pontaven (who Doc repeatedly attempted to impress and invite to dinner with no success). </Li> </Ul> </Li> </Ul> <Li> Doc (portrayed by Gerard Parkes in the live - action series, voiced by John Stephenson in the animated series)--Doc is a man who is an inventor and a former barber . His workshop has a Fraggle Hole that leads into Fraggle Rock . Gobo must go out into Doc's workshop to retrieve the postcards from the wastebasket where Doc throws them . Doc remains unaware of the Fraggles' existence . In the second - to - last episode, he finally learns that the Fraggles exist and befriends them . Matt also returns home to Fraggle Rock . When Ned Shimmelfinney moves to the desert due to his health, Doc moves with him . Due to the wisdom of Marjory the Trash Heap where states "You cannot leave the magic," a magical portal opened up in Fraggle Rock that enabled Gobo and his friends to go to where Doc is currently living . In the animated series, Doc's head isn't shown . </Li>

What is the dogs name in fraggle rock