Merlin The Diamond of the Day: Part One (Season 5, Episode 12)
TV-14
TV Episode | 43 min | Adventure, Drama, Fantasy

Primary photo for The Diamond of the Day: Part One

Merlin

The Diamond of the Day: Part One (Season 5, Episode 12)

TV-14

TV Episode | 43 min | Adventure, Drama, Fantasy

Merlin finds himself facing the future he's fought so long to avoid.

Showrunner

Director

Justin Molotnikov

Writers

Julian Jones (creator) | Jake Michie (creator) (written by) | Johnny Capps (creator) | Julian Murphy (creator)

Producers

Sara Hamill | Julian Murphy

Composers

James Gosling | Rob Lane | Rohan Stevenson

Cinematographer

Editor

Casting Director

Jill Trevellick

Production Designer

See all filmmakers & crew (157)

Edit Released

Updated Dec 22, 2012

Release date

May 24, 2013 (United States)

Awards

Series awards

4 wins & 25 nominations

Contacts

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Cast	+ Add Cast
15 cast members

Name	Known for
Colin Morgan Merlin Merlin See fewer	Belfast (2021)
Peter Guinness Ari Ari See fewer	Zack Snyder's Justice League (2021)
Katie McGrath Morgana Morgana See fewer	Jurassic World (2015)
Alexander Vlahos Mordred Mordred See fewer	Bright World: So It Goes (2022)
John Hurt The Dragon (voice) The Dragon (voice) See fewer	1984 (1984)
Bradley James Arthur Arthur See fewer	The Liberator (2020)
Tom Hopper Sir Percival Sir Percival See fewer	Black Sails (2014)
Richard Wilson Gaius Gaius See fewer	One Foot in the Grave (1990)
Eoin Macken Sir Gwaine Sir Gwaine See fewer	Resident Evil: The Final Chapter (2016)
Erin Richards Eira Eira See fewer	Gotham (2014)
Rupert Young Sir Leon Sir Leon See fewer	Doc Martin (2004)
Angel Coulby Gwen Gwen See fewer	Imagine Me & You (2005)
John Lynch Balinor Balinor See fewer	Black Death (2010)
Philip John Bailey Knight (uncredited) Knight (uncredited) See fewer	Clownface (2019)
Darren Swain Saxon swordsman (uncredited) Saxon swordsman (uncredited) See fewer	Werewolves of the Third Reich (2017)

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2 external reviews & 1 more link