The Greatest Event in Television History

Jeff Probst

Host (4 episodes)

Amanda Anka

Voiceover (4 episodes)

Adam Scott

A.J. Simon (1 episode), Jonathan Hart (1 episode), Monroe Ficus (1 episode), Henry / Hildy (1 episode)

Jon Schroeder

Tallest Doctor (1 episode), Tallest Television Executive (1 episode), Tallest Bearded Man (1 episode), Tallest Streaker (1 episode)

Paul Scheer

Trace Goron (2 episodes), Protester (1 episode)

Jon Hamm

Rick Simon (1 episode), Ghost of Jon Hamm (1 episode)

Paul Rudd

Director (1 episode), Kip / Buffy (1 episode)

Kathryn Hahn

Greta Strauss (1 episode), Sara Rush (1 episode)

Maya Ferrara

Basecamp PA (2 episodes)

Megan Mullally

Cecilia Simon (1 episode)

Gus Van Sant

Self (1 episode)

Amy Poehler

Jennifer Hart (1 episode)

Horatio Sanz

Max (1 episode)

David Wain

Bell Taint (1 episode)

Nick Kroll

Jeremy Bay (1 episode)

Paul Rust

Director (1 episode)

Catherine O'Hara

Muriel Rush (1 episode)

Jon Glaser

Henry Rush (1 episode)

Chelsea Peretti

Jackie Rush (1 episode)

Jason Mantzoukas

Director (1 episode)

Seth Morris

Channon Flowers (1 episode)

Peter Scolari

Self (1 episode)

Aidy Bryant

Amy (1 episode)

Gillian Jacobs

Sonny (1 episode)

Mo Collins

Ruth (1 episode)

Helen Slayton-Hughes

Lilly (1 episode)

June Diane Raphael

Emily Scott (1 episode)

Jack Dylan Grazer

Son (1 episode)

Aisha Muharrar

Isabelle (1 episode)

Tom Hanks

Self (1 episode)

Billy Joel

Self (1 episode)