Rachael MacFarlane, a voice actress born on March 21, 1976 in Kent, Connecticut, is best known as the voice of Hayley Smith on American Dad!, as well doing voice work on shows such as Family Guy, The Batman, The Grim Adventures of Billy & Mandy, Samurai Jack, Dexter's Laboratory, The Powerpuff Girls, Johnny Bravo, Codename: Kids Next Door, Sofia the First, The Owl House and The Orville, and that's just the stuff you've heard of. She's also the sister of Seth MacFarlane.
She wrote a children's book with her husband Spencer Laudiero as the illustrator.
This actress provides examples of:
- Brother–Sister Team: She did numerous voices on her brother's shows, especially on American Dad!.
- Crossdressing Voices: She voiced Billy Batson in Superman/Batman: Public Enemies.
- The Danza: In Codename: Kids Next Door, she voices Numbuh 362, whose real name is Rachel.
- Fake Brit: As Eris on The Grim Adventures of Billy & Mandy, Cedric's sister Cordelia as well as Elfabetty on Sofia the First, Madame Lucille on Fancy Nancy, and Odalia Blight on The Owl House.
- Fake Nationality: She provides a Greek accent for Artemiz in the Lego DC Super Hero Girls projects.
- Incestuous Casting:
- On Family Guy, she voiced Stewie's love interest, Olivia. Stewie, as most of you know, is voiced by her brother Seth. Also Quagmire's abusive girlfriend, with Quagmire being voiced by Seth too.
- In American Dad, there was an episode where Hayley had a brief fling with Stan's body double (which was borderline incestuous in-universe as the real Stan is Hayley's father), also voiced by Seth. There was also an episode where Roger (again, Seth) became romantically infatuated with Hayley.
- Man of a Thousand Voices: While not to the extent of her brother, she's voiced quite a few characters on many shows.
- Real-Life Relative: Her character on American Dad! is the daughter of the main character, Stan Smith, voiced by her brother.
- Written by Cast Member: She wrote a few early episodes of The Grim Adventures of Billy & Mandy, which is fitting since she voices both Eris and Mindy.