The surname of Wicket W. Warrick is presumably a reference to Warwick Davis. who played the character in Star Wars: Episode VI - Return of the Jedi (1983).
It has been estimated that each hour-long pair of Droids and Ewoks episodes cost between $500,000 and $600,000 to produce. This made them one of the most expensive animated series of the 1980s.
The series takes place before the events of the original Star Wars trilogy.
Throughout the series, the Ewoks often utter the word "Dengar." Dengar was the name of one of the bounty hunters who hunted for Han Solo in Star Wars: Episode V - The Empire Strikes Back (1980).
Nelvana Ltd is based in Toronto, Canada. Lucasfilm wanted a more hands on approach on the production for the second series and most of the studio facilities work was done in San Francisco instead of Toronto. This included replacing the entire voice cast with other actors between seasons.