Allegedly with Ellison Barber

Evy Poumpouras

Self - NBC News Law Enforcement Analyst

Gabby Petito

Self (archive footage) (uncredited)

Brian Laundrie

Self (archive footage) (uncredited)

Christine Marie

Self

Roberta Laundrie

Self (archive footage) (uncredited)

Chris Laundrie

Self (archive footage) (uncredited)

Maddie Misleh

Self - Spencer Tepe's Sister

Rob Misleh

Self - Spencer Tepe's Brother-In-Law

Elaine Bryant

Self - Columbus Police Department (archive footage)

Nichole Schmidt

Self - Gabby Petito's mother

Dan Slepian

Self - Senior Investigative Producer, Dateline

Dean O’Kelley

Self - Lead Detective (archive footage)

Colleen Beyer

Self - Sharon's Daughter (archive footage)

Kathy Thomas

Self - Randolph's First Wife (archive footage)