Cassandra Jean Amell (nee Whitehead) was born on October 5, 1985 in Houston, Texas, USA. She is an actress, known for Mad Men (2007), One Tree Hill (2003) and Yellow (2012). She rose to prominence after competing on Cycle 5 of America's Next Top Model.

She has been married to Stephen Amell since December 25, 2012. They have two children.