10 Actors Who Were Recast After The Pilot Episode

10. Rachael MacFarlane - Meg Griffin (Family Guy)

First up, we have something of a tumbling cascade of actresses, beginning with Rachael MacFarlane as Meg in the test pilot episode of Family Guy.

Rachael's stay was short-lived, designed to fill a gap on a tight budget while providing enough character to give the studios a taste of what was to come. Nonetheless, she set the template for the sort of voice actress the show wanted to fill Meg's pink beanie: the voice of someone hot, sociable and the complete antithesis of Meg herself.

Following on from Rachael, Lacey Chabert (Mean Girls' very own Gretchen Wieners) took on the role in the official pilot, and carried the character throughout season one. Then followed the iconic Mila Kunis, from season two onwards, and since then Family Guy has had a whale of a time often at her expense.

As she is series creator Seth MacFarlane's sister, it makes sense that Rachael was eventually found another role on Family Guy's sister show, American Dad!, and she has now spent 16 years as regular cast member and the Smith family's rebellious daughter, Hayley.