Alexandrea "Alex" Borstein (born February 15, 1973) is an American actress, voice actress, writer, producer, and comedienne. She is best known for her long-running role as Lois Griffin on the adult animated television series Family Guy since 1999, and as a cast member on the sketch comedy series MADtv.

Her Disney roles so far were for playing as Ms. Angela Ungermeyer in the 2003 Disney teen comedy film The Lizzie McGuire Movie, and Milwaukee Mom in Bad Santa.