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Watch The Big Bang Theory Online Free Full Episodes The Big Bang Theory watch online. You can streaming The Big Bang Theory all seasons and The Big Bang Theory episode list online with PC, MOBILE, SMART TV...

Where to watch The Big Bang Theory online free

The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress and aspiring actress who lives across the hall; and Leonard and Sheldon's equally geeky and socially awkward friends and co-workers, mechanical engineer Howard Wolowitz and astrophysicist Raj Koothrappali. The geekiness and intellect of the four guys is contrasted for comic effect with Penny's social skills and common sense.

Sara Rue

Dr. Stephanie Barnett

Max Mittelman

Tech Support (voice)

Mark Harelik

Dr. Eric Gablehauser

Stan Lee

Himself

Bob Newhart

Professor Proton - Arthur Jeffries

Josh Peck

Jesse

Regina King

Janine Davis

George Wyner

Dr. Zhang

Robert Clotworthy

Announcer (voice)

Analeigh Tipton

Vanessa Bennett

Johnny Galecki

Leonard Hofstadter

Jim Parsons

Sheldon Cooper

Simon Helberg

Howard Wolowitz

Melissa Rauch

Bernadette Rostenkowski

Kunal Nayyar

Rajesh Koothrappali

Mayim Bialik

Amy Fowler

Meagen Fay

Mrs. Rostenkowski

Kathy Bates

Mrs. Fowler

Kimberly Brooks

Automated Cell Phone Voice (voice)

Laurie Metcalf

Mary Cooper (voice)

James Hong

Unknown

Stephen Merchant

Dave Gibbs

Arnold Chun

Ho-Jun

Jennifer Hale

News Announcer (voice)

Judd Hirsch

Dr. Alfred Hofstadter

Buzz Aldrin

Himself

Craig Gellis

Car Thief #1

Brian George

Dr. Koothrappali

Lewis Black

Unknown

Brent Spiner

Brent Spiner

Max Adler

Zombie

Courtney Henggeler

Missy Cooper

Jim Meskimen

Minister

Summer Glau

Herself

Ken Lerner

Dr. Schneider

Eliza Dushku

Unknown

June Squibb

Meemaw

Frank Maharajh

Venkatesh Koothrappali

Lanny Joon

Officer Shin

Aarti Mann

Priya Koothrappali

Pamela Adlon

Halley Wolowitz (voice)

David Theune

Dr. Graybel

Jane Kaczmarek

Dr. Gallow

Bill Nye

Himself

Lance Barber

George Sr.

Frank Alvarez

Car Thief #2

Tom Yi

Dispatcher (voice)

DJ Qualls

Toby Loobenfeld

LeVar Burton

Himself

Bruce Holman

Airport Pedestrian

Riki Lindhome

Ramona Nowitzki

Elon Musk

Himself

Jim Turner

Reverend White

Jan Hoag

Lillian

Adam West

Himself

Joel Brooks

Unknown

April Bowlby

Rebecca

Travis Davis

Ground Controller (voice)

Iris Bahr

Gilda

Margo Harshman

Alex Jensen

Eddie Shin

Dr. Park

Blake Berris

Unknown

Melissa Tang

Mandy Chao

John Ross Bowie

Barry Kripke

Michael Patrick McGill

Police Officer

Carol Ann Susi

Debbie Wolowitz (voice)

Alex Ball

Waiter

Megan Heyn

Natalie

Annie O'Donnell

Mrs. Fowler

Laura Spencer

Emily Sweeney

Casey Sander

Mike Rostenkowski

Rick Fox

Unknown

Robert Noble

Older Gentleman

Sharon Omi

Nurse in Biohazard Suit

Marissa Cuevas

Danielle

Rena Strober

Caller (voice)

Kara Luiz

Jeanie

Troy Winbush

Paramedic

Susan Chuang

Dr. Harris

Dean Norris

Colonel Williams

Briana Cuoco

Gretchen

Sarayu Rao

Lalita Gupta

Joshua Malina

President Siebert

Phoebe Neidhardt

Casting Assistant

Iain Armitage

Young Sheldon

Bryan Safi

Daniel

Bill Gates

Himself

Aaron Takahashi

Scientist

Dana L. Wilson

Dr. Sanders

Katherine Von Till

Tech Support Recording (voice)

Sara Gilbert

Leslie Winkle

Endre Hules

Russian Mission Control (voice)

Brooke D'Orsay

Christy Vanderbel

Wil Wheaton

Himself

Tate Ellington

Mitchell

Tucker Albrizzi

Christopher

Krishna Smitha

Woman #5

Rodney J. Hobbs

Reporter #3

Blair Hickey

Reporter #2

Treisa Gary

Waitress

Talbott Lin

Chinese Leonard

Howard Chan

Chinese Sheldon

Sarayu Blue

Lalita Gupta