Alex McKenna (born October 15, 1984) is an American television and film actress. She gained fame by playing Petunia Stupid in The Stupids (1996) and Mickey Apple in You Wish (1997). She resumed her acting career with guest appearances in CW hit teen drama series 90210 in 2010. In 2012, she had recurring appearances in the TV series, including Dallas, Guys with Kids and Two and a Half Men. She served as a voice actress in the The Legend of Korra (2014) and appeared in the horror film Haunted (2014).