Cast (7)

Johnny Galecki

Leonard Hofstadter

Jim Parsons

Sheldon Cooper

Kaley Cuoco

Penny

Simon Helberg

Howard Wolowitz

Kunal Nayyar

Rajesh Koothrappali

Melissa Rauch

Bernadette Rostenkowski

Mayim Bialik

Amy Farrah Fowler

Crew (10)

Directing

Mark Cendrowski

Director

Nikki Lorre

Second Assistant Director

Writing

Chuck Lorre

Story

Steve Holland

Teleplay

Tara Hernandez

Teleplay

Eric Kaplan

Story

Jeremy Howe

Story

Maria Ferrari

Teleplay

Production

Tara Treacy

Casting

Costume & Make-Up

Sara Markowitz

Costume Supervisor

Guest stars (6)

Kevin Sussman

Stuart Bloom

Laurie Metcalf

Mary Cooper

Susan Chuang

Dr. Harris

Riki Lindhome

Ramona Nowitzki

George Wyner

Dr. Zane

Stephen Hawking

Stephen Hawking