DC's Legends of Tomorrow/Hey, World!

Hey, World!
Season 4, Episode 16
Airdate	May 20, 2019
Production Number	T13.21066
Written by	Phil Klemmer & Keto Shimizu
Directed by	Kevin Mock
Stream
← 4x15 Terms of Service	5x01 → Crisis on Infinite Earths (5)
DC's Legends of Tomorrow — Season Four

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Hey, World! is the sixteenth episode of the fourth season of DC's Legends of Tomorrow, and the sixty-seventh episode overall.

Starring: Brandon Routh (Ray Palmer, Neron), Caity Lotz (Sara Lance / White Canary), Maisie Richardson-Sellers (Charlie), Tala Ashe (Zari Tomaz), Jes Macallan (Ava Sharpe), Courtney Ford (Nora Darhk), Amy Louise Pemberton (Gideon), Ramona Young (Mona Wu)

with Nick Zano (Dr. Nate Heywood / Steel)

and Dominic Purcell (Mick Rory / Heatwave)

Special Appearance by: Matt Ryan (John Constantine)

Guest Starring: Tom Wilson (Henry Heywood), Adam Tsekhman (Gary Green), Jane Carr (Fairy Godmother / Tabitha), Sisa Grey (Mona as a Kaupe), Paul Reubens (Dybbuk), Olivia Swann (Adult Astra), Shayan Sobhian (Behrad Tarazi), Gracelyn Awad Rinke (Young Zari)

Guest Star (end credits): Casper Crump (Vandal Savage)

Guest Star (end credits): LaMonica Garrett (Mar Novu / The Monitor)

Co-Starring: Sandy Sidhu (Nasreen), Jason Simpson (Calibraxis), John DeSantis (Ogre), Devyn Dalton (Púca), Daniel Cudmore (Minotaur), Joel McCooey (Mummy), Natalia Vasiluk (Baba Yaga), Paul Batten (Senator Wellington), Deni Delory (Mrs. Appleby), Ronin Wong (Ranking Senator), Tiffany Mo (Reporter), Morgan Brayton (Demon Bank Teller), Rhys Slack (Bratty Kid), Jeff Gladstone (New Teller)