Conceiving Ada

Tilda Swinton

— Ada Augusta Byron King, Countess of Lovelace

Francesca Faridany

— Emmy Coer

Timothy Leary

— Sims

Karen Black

— Lady Byron / Mother Coer

John Perry Barlow

— John Crosse

John O'Keefe

— Charles Babbage

J.D. Wolfe

— Nicholas Clayton

Owen Murphy

— William Lovelace

David Brooks

— Children's Tutor

Esther Mulligan

— Mary Shelley

Ellen Sebastian

— Dr. Fury

Mark Capri

— Dr. Locock

Joe Wemple

— Priest / Talk Show Host

Chris von Sneidern

— Musician In Elevator

David Eppel

— Simon

R.U. Sirius

— Barlow

Kashka Peck

— Teenage Ada

Rose Lockwood

— Child Ada / Claire

Jesse Talman Boss

— Baby Ada

Lillian L. Malmberg

— Anne Isabelle Byron

Cyrus Mare

— Ralph Byron

Michael Oosterom

— Lord Byron

Pollyanna Jacobs

— Cocktail Server

Roger Shaw

— Priest (voice)

Bruce Sterling

— CD Rom (Voice)

Dave Nelson

— CD Rom (Voice)

Henry S. Rosenthal

— CD Rom (Voice)

George Leeson

— CD Rom (Voice)

Melissa Howden

— CD Rom (Voice)

Josh Rosen

— CD Rom (Voice)