The GMC Sierra has long been a staple of the American truck market—rugged, refined, and relentlessly powerful. It’s the truck for professionals, outdoorsmen, and everyday drivers who want more from their ride. But behind every great vehicle commercial is a great performance, and fans have begun to ask: Who is the actor in the Sierra commercial?
From its cinematic visuals to the voice that cuts through with calm confidence, the Sierra ad campaign is built to impress. This article dives into the people—especially the actor(s) and voiceover talent—who bring GMC Sierra commercials to life, how they were chosen, and why their performances stick with viewers.
The commanding voice you hear in most recent GMC Sierra commercials belongs to Will Arnett, the Emmy-nominated actor known for his roles in Arrested Development, BoJack Horseman, and The LEGO Batman Movie.
Arnett’s voice is unmistakably deep, confident, and subtly playful—an ideal match for GMC’s brand voice. His narration brings a sense of strength and precision that mirrors the Sierra’s bold design and performance features.
Quote from GMC Creative Team:
“Will Arnett’s voice has presence. It doesn’t just describe the truck—it becomes part of its identity.”
One of the most popular commercials featuring Arnett’s voice is the 2023 GMC Sierra AT4X ad, which showcases the off-road-ready trim in a rugged, adventurous setting.
In the commercial, Arnett’s voice guides viewers through the truck’s advanced technology, multi-function tailgate, and luxury features, all while evoking an aspirational lifestyle.
While Arnett provides the voice, the on-screen actors in GMC Sierra commercials are typically commercial actors or models rather than widely recognized celebrities. These actors are selected for their look, charisma, and the ability to represent GMC’s values of toughness, reliability, and style.
Most Sierra ads do not name their on-screen actors, which keeps the focus on the truck rather than a celebrity endorsement. However, they are usually professional performers with experience in action, outdoor, or lifestyle advertising.
Notable Appearances Include:
A rugged man driving the AT4X through mountain trails
A couple showcasing family versatility with the Denali Ultimate trim
Workers and off-roaders using the MultiPro tailgate
These portrayals are meant to feel relatable, yet aspirational—characters viewers could imagine themselves being.
The success of the GMC Sierra commercials lies in their cinematic quality and consistent tone.
Here’s what sets them apart:
Voiceover by Will Arnett: Instantly recognizable, authoritative yet relaxed
Striking visuals: Dust trails, mountain passes, city lights at dawn
Minimal dialogue: Letting the truck and voiceover do the talking
Tagline consistency: “We Are Professional Grade” has been used for years
Quote:
“You don’t need explosions or gimmicks when the truck speaks for itself,” said ad director Casey Rand. “But it helps to have Will Arnett narrating.”
GMC’s longtime slogan, “We Are Professional Grade,” is more than a catchphrase—it’s a promise of quality, performance, and style. The actor and voice talent in each Sierra ad reinforce this philosophy through body language, tone, and setting.
Will Arnett’s delivery helps sell that message with a steady blend of sophistication and capability. His style says: this isn’t just a truck; it’s a tool built for people who know what they’re doing.
Arnett began voicing GMC commercials around 2020, becoming the new signature voice of the brand. Before him, GMC used a variety of voices, but none had the lasting impact that Arnett brought.
The company wanted someone who could deliver on these qualities:
Masculine, yet refined
Confident, not cocky
Recognizable, but not distracting
Trusted by male and female audiences alike
And Will Arnett fit the bill perfectly.
Quote from Leo Burnett (GMC’s Ad Agency):
“Will’s voice was the missing piece. It made the brand voice feel complete.”
Though Will Arnett is the current voice of GMC, other actors have voiced or appeared in GMC commercials in the past, including:
John Corbett – Former voice actor for GMC
Morgan Matthews – Non-celebrity narrator in earlier campaigns
Various commercial actors – Appear onscreen to represent real GMC drivers
None of these individuals had the long-term presence that Arnett now enjoys. GMC seems to have found the voice that perfectly pairs with its flagship vehicle, the Sierra.
Public reception of the GMC Sierra commercials—particularly those with Will Arnett—has been overwhelmingly positive.
Sample Twitter Comments:
“Every time I hear a GMC commercial, I want to buy a truck. And I don’t even drive.” – @TruckLover420
“That voice… is it Batman? No. It’s better. It’s Will Arnett. #GMC” – @VoiceSnob
“The Sierra AT4X ads make me want to go camping immediately. They nailed the vibe.” – @OutdoorsDad
These types of responses show that the commercials are connecting with audiences not just visually, but emotionally.
GMC commercials are shot with a focus on real-world functionality, natural lighting, and authentic terrain.
Filming often includes:
Real dirt roads, not green screens
Drone shots of mountains, forests, and work sites
Actual Sierra models driven by stunt drivers or trained commercial actors
Each actor or extra is given clear direction to ensure continuity and realism. Even without speaking roles, they help create the environment that makes the Sierra look unstoppable.
If you’re inspired by the GMC Sierra ads and want to be in one yourself, here are the steps:
Sign up with casting agencies that handle commercial work
Build a portfolio with rugged, outdoorsy looks or lifestyle shots
Create a voiceover reel if you’re pursuing narration
Stay in shape and learn basic stunt driving or action poses
Actors in GMC ads are often chosen for their versatility and physical presence, not celebrity status.
Resources for getting started:
Backstage.com
Casting Networks
Voices.com
So, who is the actor in the Sierra commercial? The most recognizable contributor is Will Arnett, the voiceover star whose narration gives GMC its confident identity. Meanwhile, the on-screen actors—though not household names—are carefully cast to represent power, capability, and real-world adventure.
Together, the voice and visuals create an experience that sells not just a truck, but a lifestyle. Whether you’re a weekend camper, a city commuter, or a contractor on the job, GMC Sierra’s marketing makes it clear: this truck is for you.
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