Question: I remember watching an old Bonanza that had a midget as a guest star. It may be the one about Hoss and a leprechaun. Can you tell me his name? Was he in show business, or just in that one show? Thanks. — Phil, New York, N.Y.

Televisionary: It depends on which episode you're talking about, Phil. In the 1963 episode "Hoss and the Leprechauns," in which Hoss (Dan Blocker) meets up with people he thinks are leprechauns but are really rebellious performers from a carnival, two of the guest stars (Harry Monty and Nels Nelson) were actors who'd appeared in The Wizard of Oz nearly three decades before.

But I have a feeling you mean the 1970 episode "It's A Small World," in which a former circus performer (Michael Dunn) leaves his job to settle down in Virginia City and ends up on the wrong side of the law when he can't find work. Dunn, an acclaimed actor, garnered accolades for his stage work and gave a particularly noteworthy performance on the big screen in Ship of Fools, for which he received a Best Supporting Actor Academy Award nomination.