sentences:  Several members of the cast of "Taxi", including Marilu Henner, Judd Hirsch, Christopher Lloyd, Carol Kane, and Jeff Conaway make cameos, playing themselves.Danny DeVito, who was also in the cast of "Taxi", co-starred in the film and did not appear as himself.Many of Kaufman's other real-life friends and co-stars also appear in the film (although not all as themselves), including Zmuda, Shapiro, Margulies, David Letterman, Paul Shaffer, professional wrestler Jerry Lawler, wrestling announcers Jim Ross and Lance Russell, "The Improv" founder Budd Friedman, "Saturday Night Live" creator Lorne Michaels, and actors Vincent Schiavelli and Chad Whitson.