Nicholas Campbell appeared as the Hitchhiker in the initial trilogy of "tryout" episodes, which originally aired in late 1983. After HBO picked the show up for a full second season, Campbell was unavailable to reprise his role, so Page Fletcher took over the role. For reruns, all of Campbell's scenes were replaced with re-shot footage of Fletcher. Even on the Canadian Season 1 DVD release, a "Fletcher" version of an original Campbell episode got released by mistake.