The entire Terwilliger family returns in "Funeral for a Fiend" (season 19, 2007) in which Bob's father, Robert Terwilliger Sr., and mother, Dame Judith Onderdonk, make their first appearances. Cecil also appears a second time on the show. Bob at first attempts to kill the whole family a second time, but his plan fails. Bob fakes his own death during his trial and locks Bart in the coffin, which he attempts to cremate at the otherwise empty funeral home as all the Terwilligers laugh maniacally. They are foiled by Lisa and the rest of the Simpson family and sent to prison.
The entire Terwilliger family returns in "Funeral for a Fiend" (season 19, 2007) in which Bob's father Robert Terwilliger Sr., and mother, Dame Judith Onderdonk, make their first appearances. Cecil also appears a se.cond time on the show. Bob at first attempts to kill the whole family a second time, but his plan fails. Bob fakes his own death during his trial and locks Bart in the coffin, which he attempts to cremate at the othe,rwise empty funeral home as all the Terwilligers laugh maniacally They are foiled by Lisa and the rest of the Simpson family and sent to prison.