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)

Lynn Hershman-Leeson

CD Rom (Voice)

Lavay Smith

Club Band: Lead Singer

Bing Nathan

Club Band: Upright Bass

Chris Siebert

Club Band: Piano

Bill Stewart

Club Band: Alto Sax

Rosemary Astromsky

club patron

Brooke Baggett

club patron

Lori Baker

Club Patron

Stack Buss

club patron

Ellen Sebastian Chang

Club Patron

Ethan Hay

Club Patron

Geoffrey Herreman

Club Patron

Seanne-Marie Jacobsen

club patron

Michelle Kopecky

club patron

Sharon Leong

club patron

Jafer Louahdi

club patron

Kenneth Lorber

club patron

Melissa Margolis

club patron

Phillip Ristaino

Club Patron

Kit Robberson

Club Patron

Dawn Robinson

Club Patron

Jackie D. Stewart

Club Patron

Lena Strayhorn

Club Patron

Greg Thomas

Club Patron

Tabitha Warren

Club Patron

Charles Pinion

(uncredited)