Karissa Vacker was a military kid and moved frequently before her family settled in Texas. She received her BFA in theatre from Southern Methodist University in Dallas, TX and graduated summa cum laude before performing lead roles in regional theatres across the country, notably, Chicago Shakespeare Theatre, Milwaukee Repertory Theatre, Geva Theatre Center (NY) and PCPA Theatrefest (CA). She now resides in Los Angeles and is working in film and television on shows such as How I Met Your Mother, Castle, Chuck, 90210, Days of Our Lives and the film Someone Marry Barry.