R2-D2

Tegan Jovanka contemptuously referred to her former companion Nyssa's servo robot Loki as R2-D2. (AUDIO: Cobwebs)

Andy Hansen once told a joke to Erimem which involved R2-D2 in the punchline. (PROSE: Arrrr...)

Behind the scenes

 * R2-D2 is a character in the Star Wars series and the constant companion of C-3PO.
 * In the Star Wars: The Clone Wars episodes "A Test of Strength" and "A Necessary Bond", David Tennant voices the character of Huyang who works closely alongside R2. (R2 also helps repair Huyang in "Bound for Rescue", but Tennant has no lines in the episode.)