Urdnot Wrex

Urdnot Wrex is a fictional character in BioWare's Mass Effect franchise, who serves as a party member (or "squadmate") in the first game of the Mass Effect trilogy. He is a krogan, an alien race near-sterilised by other galactic races for their violence and high population growth. Introduced as an experienced krogan mercenary, his role changes in Mass Effect 2 and Mass Effect 3 where he becomes leader of an expanding krogan clan and eventual head of state for the krogan as a whole. After a 1000 years of aimless apathy, Wrex seeks to bring back hope to his people and reverse the genocidal-plague placed upon them.

Able to die in the first game in a stand-off with the player-character, the character will appear in the second and third games if the player imports a savegame where Wrex lives. In the Citadel downloadable content for the third game, he is available as a squadmate again for the DLC's duration. In addition to the games, he is the star of the Mass Effect: Foundation comic series' second issue. Merchandise of the character has also been made available.

Krogan faces drew inspiration from bats. Their bodies were given a thick exoskeleton expressive of their battle-hardened nature. The krogan had to fit into human animation skeletons, limiting designs and making developers focus on their backs to increase their size. Wrex was given a "splash" of red color and scars to separate him from others of his race. The scars further stress his combat experience. His stand-off with the player-character was presented as an example of Mass Effect's cinematography.

The character was positively received, with praise going to his humour and writing. His stand-off with Shepard in the first game drew attention.

Creation and development
Associate art director Matt Rhodes drew inspiration for the faces of krogan from bats after drawing various different animal species. Originally, their eyes were located on the sides of their heads. However, as they were being modeled the modeler noted that this was a trait of prey animals; thus, the eyes of the krogan were moved to the front to match their predatorial nature. This had the benefit of both making their design more believable, and worked better in conversation.

As a battle-hardened race, something akin to a thick chitin exoskeleton was given to the race. Limits were brought as krogan still had to fit into a human skeleton for animation purposes, a problem with many of the races. As the back area of a race was a "safe" area, allowing designers to play with the silhouette without negatively impacting combat animation and conversations, it was often greatly increased for bigger races like the krogan. The heavy skin of an Indian rhinoceros was used as the reference for the krogan's body.

In order to distinguish Wrex from other krogan, his head was given a "splash" of red color as well as deep scarring. These scars across also demonstrated his combat experience.

Steven Barr voiced Wrex in each game. In the first game, senior writer Mac Walters focused on the character in addition to Garrus Vakarian.

Mass Effect
Wrex makes his debut appearance in 2007's Mass Effect.

Mass Effect 2
The character returns in 2010's Mass Effect 2, though is not available as a squadmate. If the player imports a Mass Effect save where Wrex was recruited and is still alive, he will appear on the krogan homeworld of Tuchanka and greet Shepard warmly on arrival. He will reveal he united many krogan clans under Clan Urdnot, and is instigating reforms as leader to prevent the krogan's eventual destruction. Should the player perform Grunt's loyalty mission, which involves letting Grunt join Clan Urdnot, Shepard will talk to Wrex and must then help Grunt on his "rite of passage". In Mordin's loyalty mission, he will point Shepard to a scout to continue it. Alternatively, if the player imports a save where Wrex died or was not recruited, his more bloodthirsty traditionalist brother Wreav will appear in his stead.

Mass Effect 3
If a save where Wrex is alive and was recruited is imported again, Wrex will appear in the trilogy's third game. He will appear as the leader of the krogan, and appears as part of a questline to cure the Genophage. In the Citadel downloadable content, he becomes a party member for the DLC's duration.

Mass Effect: Foundation
Wrex appears in the second Foundation issue.

Reception
Prior to the release of the first game, Ray Muzyka, CEO of BioWare, believed that Wrex would prove one of the more popular squadmates. In addition, lead designer Preston Watamaniuk has called him his personal favourite character in the trilogy.

Upon release, Wrex received a positive reception. In a list of 50 characters, Gameplayer called him the sixth best Xbox character, praising "his no-nonsense approach, cool head, and poignant speeches". Tom Francis, writing for PC Gamer, wanted to see Wrex most out of all returning characters in Mass Effect 3, noting his popularity in how him simply saying "Shepard" had become a meme. In an article for Game Informer, Jeff Marchiafava named him the fictional character he'd bring round for Thanksgiving if he could.

Wrex is well-regarded as a party member. Official Xbox Magazine awarded him "Sidekick of the Year", saying "Brilliant dialogue, pitch-perfect voice acting, and incredible comic timing made Wrex the most charming, fun, and just plain cool giant armored lizard we’ve ever (virtually) met." VideoGamer.com's list of "Top 10 Video Game Companions" placed him seventh and called him their favourite Mass Effect character, noting the humour in his bloodlust. Adam Biessener of Game Informer listed him second in his "The Top 5 Wingmen Of The Decade" article, commenting how his quality of writing separated him from other stereotypical "brusiers". GameZone's Dakota Grabowski placed him sixth in his list of top BioWare companions, noting the "entertainment value" in his conversations. Similarly Steven Hopper, for IGN, listed him as the third best squadmate in the Mass Effect games, calling him "stubborn" and "tough as nails". In IGN's reader-vote for "the ultimate RPG party", Wrex was the twelfth most requested.

In a look at different RPG archetypes, GamesRadar's Lucas Sullivan called the character an example of the "Grizzled Veteran".

His stand-off and potential death scene in the first game drew attention. Ryan Hodge, writing for GamesRadar, called it one of "gaming's most heartbreaking betrayals", commenting "The most heartbreaking part of Wrex's betrayal is he didn't want to do it. He wasn't evil all along or even being coerced." In an article titled "The Toughest Life Or Death Choice In The Gaming Universe", Kotaku's Stephen Totilo called the choice "shocking", noting how there was no obvious right answer to the dilemma. Toby McCasker, writing for IGN, felt a "pang of uncertainty" when he had his character kill Wrex, not due to the "brutality" of it, but rather pointing out how it felt incongruous to the story, as if he made the "wrong" choice. He then noted a sense of "narrative displacement" again when meeting Urdnot Wreav in the second game.