The provided text offers an extensive biographical overview of the American actor and environmentalist, Ed Begley Jr. This Wikipedia entry details his personal life, including his birth in Los Angeles in 1949 to actor Ed Begley, Sr., his education, and his two marriages. A significant portion of the source is dedicated to his extensive career, listing his numerous roles in film and television, such as Dr. Victor Ehrlich on St. Elsewhere, for which he received multiple Emmy nominations, and his recurring roles in Christopher Guest's mockumentaries. Furthermore, the text comprehensively covers his activism, highlighting his decades-long commitment to environmentalism, including his eco-friendly lifestyle, veganism, authorship of books on sustainable living, and affiliation ...