Keira Knightly as Sara Andrews

Sara "Jane" Andrews is 37 years old and travels first class. She is married to Thomas Andrews and they have a little daughter together called Elisabeth. Sadly, their daughter suffers from a terrible sickness.

Jena Goldsack as Amaris Evans

Amaris "Alexia" Evans is 19 years old and travels first class. She needs to marry with a rich man from America. But Amaris secretly has a crush on Jonathan Johnson, the personal servant of the family. She has to keep it a secret, because her mother would never accept it....

Eddie Redmayne as Edward Lewis

Edward "James" Lewis is 30 years old and has been assigned to be a doctor on the Titanic for its maiden voyage. He's married.

Aaron Taylor as Jonathan Johnson

Jonathan "Alex" Johnson is 20 years old and is the personal servant of the Evans family. He travels together with them. He secretly has a crush on Amaris.

Jessica Clements as Everest Jones

Everest "Elisabeth" Jones is 25 years old and a maid on board of the Titanic. She has a crush on sixth officer James Moody and is best friends with fith officer Harold Lowe.

Jenn Proske as Julia Parker

Julia "Emma" Parker is 18 years old and travels third class. She had a little daughter called Sophia. She's a teenage mom, so she's not always well liked by others, especially the first class.

Mackenzie Foy as Sophia Parker

Sophia "Julia" Parker is 5 years old and travels third class, together with her mother Julia Parker. She was born when Julia was only 13 years old.

Froy Gutierrez as August Dubois

August "Rowen" Dubois is 20 years old and travels third class, together with Jack Dawson and Fabrizio de Rossi. He's originally from France, so he always speaks with a strong French accent.