<Ul> <Li> Michael Fassbender as Callum `` Cal '' Lynch and Aguilar de Nerha : An original character created for the film , Lynch is a descendant of the Assassins , with genetic links to Aguilar , an Assassin in 15th century Spain . Cal has been running his whole life , ever since he was forced to witness his mother 's murder as a child . But living on society 's fringes has also kept him shrouded from the secrets of his ancestry . Awaiting execution on death row , Cal is captured and brought to the Abstergo facility ( Abstergo Foundation in Madrid , Spain ) , where he may soon come to understand his place in the world , and control the power burning inside of him . Fassbender described Cal by saying `` He does n't have a lineage he can feel a belonging to ... he 's a bit of a lost soul . He 's always been drifting in and out of correctional facilities , '' and conversely described Aguilar as `` very much somebody that belongs to the Creed . He has a cause , he 's sort of been following that cause . He belongs to it . '' Angus Brown portrays a young Cal . </Li> <Li> Marion Cotillard as Dr. Sofia Rikkin : The daughter of Alan Rikkin and the leading scientist of the Animus project at Abstergo Foundation . Sofia is a brilliant scientist determined to use science to eradicate humanity 's violent impulses and create a harmonious world . She might not see the dark underside of the modern - day Templars ' causes , and her allegiance is yet to be tested . Marion Cotillard described Sofia 's relationship with her father as `` twisted . '' Their relationship is distant , and she tries everything to make him proud , '' she explains . `` But at the same time , she starts to understand that they 're not really on the same page . The most important thing for her is not to impress her father . It 's to achieve what she started . '' </Li> <Li> Jeremy Irons as Alan Rikkin : The CEO of Abstergo Industries and , particularly , his private Madrid - based organization Abstergo Foundation dedicated to the `` perfection '' of humankind , one of the leaders of modern - day Knights Templar , and the father of Sofia , to which he feels a strong love . He is determined to achieve his orders ' centuries - long goal to gain control over humanity . Through Cal , and the ancestral memories he holds , Rikkin may finally have found the key to achieving ultimate power for the betterment of humanity . `` I 'm a mover and a shaker . A shadowy figure . A man who is very much at the forefront of this world , '' Irons says . Like Sofia , Rikkin believes in `` removing the violent impulse all men carry , '' and sees an opportunity in Cal . `` Rikkin believes the cause of unhappiness in the world is war , and if he can get rid of that then people like him will be safer and wealthier . He 's not a very moral man , but he thinks he is . '' The character previously appeared in the first Assassin 's Creed game . </Li> <Li> Brendan Gleeson as Joseph Lynch : The father of Cal Lynch and an Assassin , who was forced to kill his wife , Mary Lynch , in order to save her from Abstergo 's invasion . Brian Gleeson , Brendan 's real - life son , portrays a young Joseph . </Li> <Li> Charlotte Rampling as Ellen Kaye : Referred to as `` Your Excellency '' , is a senior member of the Templar Elders . Looking to re-purpose Abstergo 's multibillion - dollar annual budget used for the Animus program . </Li> <Li> Michael K. Williams as Moussa : A descendant of Baptiste , a Haitian Assassin who uses voodoo poison against his enemies . Escapes with Cal and Lin to London . Williams said , `` Moussa definitely has some assassin skills . Although I think he prefers to use trickery and magic and voodoo to slay his opponents as opposed to just hand - to - hand combat , but if it needed to be he could take it to the mat . '' Baptiste previously appeared in Assassin 's Creed : Liberation . </Li> <Li> Denis Ménochet as McGowen : Head of Rikkin 's large Abstergo security force . </Li> <Li> Ariane Labed as Maria : An assassin in 15th century Spain and the closest ally of Aguilar
who played the female assassin in assassin 's creed
Ariane Labed