In Who Mourns for Morn? (1998), in which Shepherd's character, Morn, has disappeared, the person Quark invites to sit in Morn's favorite chair is Shepherd himself.
Although his character, Morn, on Star Trek: Deep Space Nine (1993) was described as talkative and
outgoing and was frequently talked to by other characters, Shepherd
never actually spoke a single word on the show throughout its entire
run.