Fred Willard, Michael McKean, Ed Begley Jr. Join HBO's Christopher Guest Comedy

The trio will recur in family documentary-style "Family Tree," with Guest staple Don Lake also guesting on the series.

Christopher Guest has enlisted a roster of familiar faces for his upcoming HBO documentary-style comedy series Family Tree.

Fred Willard, Michael McKean and Ed Begley Jr. have boarded the series in recurring roles, while Don Lake has booked a guest gig, The Hollywood Reporter has learned exclusively.

The project centers on 30-year-old Tom Chadwick (Bridesmaids' Chris O'Dowd) who, after losing his job and his girlfriend, begins exploring his family heritage after inheriting a mysterious box from a great aunt he never met. Unsure of his identity, he uncovers a world of unusual stories and characters -- as well as a growing sense of who he and his real family are.

Begley will play Tom's Uncle Andy; Willard will play Andy's neighbor, Mike; and McKean will play Tom's father, Keith. Lake will play a friend of Tom's cousin.

Begley, Willard and McKean are regular staples in Guest's mockumentary features, all having appeared in For Your Consideration, A Mighty Wind, Best in Show and This Is Spinal Tap; Lake appeared in all but Spinal Tap.

Begley is repped by Innovative and Industry; Willard and Lake are with AEF; McKean is with APA and Harriet Sternberg.

HBO picked up Family Tree straight to series in August, ordering eight episodes of the single-camera half-hour effort, which will air simultaneously on the BBC2 in the U.K. The series is produced by NBC Universal International TV's Lucky Giant Productions' Guest, Piddock and Karen Murphy.


omg can they just announce some of the leading women