15 Facts About ‘Westworld’ That Will Make You Love The Show Even More

11. Miranda Otto Was Originally Cast As Theresa Cullen

Theresa Cullen, Westworld’s sharp and trenchant head of operations, has the extraordinary responsibility of keeping the theme park in order, making sure none of its attractions run off the rails or go off script. Audiences have witnessed actress Sidse Babett Knudsen embody the character with exceptional poise, but she was originally not cast as Theresa Cullen.

When the casting announcements were made, Miranda Otto was to play Theresa Cullen. Otto has starred in both film and television, appearing in two of the Lord of the Rings movies as well as the USA Network mini series The Starter Wife. Otto is more recently known for her portrayal of Allison Carr in Homeland, and due to a commitment to the Showtime series, she was forced to withdraw from Westworld in July of 2015.