But When She Was Bad... She Was Horrid: Part 1

"When She Was Bad, She Was Horrid: Part 1" is the fourth episode of Season 3 of Road to Avonlea and the 30th episode overall.

Summary
Sara befriends a petty thief named Jo Pitts, who looks exactly like her. When Hetty's disciplinarian nature becomes too much for Sara to tolerate, she switches places with Jo. While Hetty is trying to adjust to the new and crude look-alike, the real Sara departs with Gus Pike on a daring adventure to search for Captain Crane.

Cast
Main cast
 * Zachary Bennett as Felix King
 * Jackie Burroughs as Hetty King
 * Lally Cadeau as Janet King
 * Sarah Polley as Sara Stanley/Jo Pitts
 * Mag Ruffman as Olivia Dale
 * Gema Zamprogna as Felicity King

Recurring cast Guest cast
 * Don Francks as Abe Pike
 * Barbara Hamilton as Eulalie Bugle
 * Kay Hawtry as Mabel Sloane
 * Elva Mai Hoover as Elvira Lawson
 * Michael Mahonen as Gus Pike
 * Colin O'Meara as Buck Hogan
 * Ron Tough as Farmer
 * John Weir as Sailor
 * J. J. Authors as Purser