|PERFORMER||Dave Goelz puppeteer|
|David Barclay puppeteer|
|David Shaughnessy voice|
Sir Didymus is a fox-terrier in Labyrinth, as specified by the presskit, who believes he is a great and chivalrous knight. He has a canine steed named Ambrosius, and has the job of guarding the bridge that crosses over the Bog of Eternal Stench.
Didymus is brave to a fault, being the first to rush into a dangerous situation and the last to back out (if he ever does back out), with no regard at all to personal safety. He follows a strict chivalraic code and once he sets his mind to something, one would be hard-pressed to get him to stop (although asking nicely seems to work).
After having been part of the Center for Puppetry Arts exhibit Jim Henson: Wonders from His Workshop since 2008, the Sir Didymus puppet became part of the center's permanent Worlds of Puppetry exhibit in 2015.