Allison Munn is an American actress, perhaps best known for her roles as Caroline in the Fox sitcom That '70s Show, Tina Haven in The WB sitcom What I Like About You, and Lauren in The WB/CW drama One Tree Hill. Allison Munn is an American actress, perhaps best known for her roles as Caroline in the Fox sitcom That '70s Show, Tina Haven in The WB sitcom What I Like About You, and Lauren in The WB/CW drama One Tree Hill.