Michael York guest-stars as a bedraggled space traveller who claims to be King Arthur. Meanwhile, Sheridan defends B5 against the forces of Earth. Crucial to the strategy devised by Sheridan and Ivanova is an alliance with the Centauri government ---something that Londo can not and will not tolerate. This is the episode in which G'Kar is willingly cast in the role of "The Red Knight." First shown in America during the week of April 22, 1996, "A Late Delivery from Avalon" was written by J. Michael Straczynski. ~ Hal Erickson, All Movie Guide