Dallas

 𝐓𝐡𝐞 𝐒𝐡𝐨𝐭 𝐇𝐞𝐚𝐫𝐝 ‘𝐑𝐨𝐮𝐧𝐝 𝐭𝐡𝐞 𝐖𝐨𝐫𝐥𝐝: 𝐊𝐫𝐢𝐬𝐭𝐢𝐧’𝐬 𝐃𝐚𝐥𝐥𝐚𝐬 𝐃𝐞𝐜𝐞𝐩𝐭𝐢𝐨𝐧 

On “Dallas,” Mary Crosby’s Kristin Shepard wasn’t just Linda Gray’s (Sue Ellen) troublemaking younger sister—she was the ultimate agent of chaos for Larry Hagman’s J.R. Ewing.

As Sue Ellen’s sibling, Kristin exploited her family access to weave a web of scandal, most infamously becoming J.R.’s mistress. Their dangerous affair culminated in the legendary “Who Shot J.R.?” cliffhanger, where Kristin was revealed as the vengeful shooter. This twist made TV history, forever linking Crosby's character to Hagman's iconic villain in a saga of betrayal, family conflict, and unforgettable drama.