The comic strip Doonesbury, by Garry Trudeau, features an extensive cast of characters with complex interpersonal relationships; as of 2018, the strip's official website lists twenty-four primary characters, with dozens more having been featured over the years, including some who were phased out of the strip only to be reintroduced years later. Kim Rosenthal, for example, first appeared as a recurring child character in the 1970s, then as a teenager in the 1980s, and was reintroduced as an adult in the 1990s.