Every overnight success has an origin story. Alan Ritchson's just happens to include Simon Cowell.

Long before he was snapping bones as Jack Reacher, in 2004 Ritchson was a 20-year-old aspiring singer auditioning for American Idol, where he survived the contest long enough to charm Paula Abdul before eventually getting sent home. Good thing he turned out to be better at throwing punches than hitting high notes. A year later, he traded microphones for muscles, making his scripted acting debut as Arthur Curry, aka Aquaman, on Smallville.

Looking back now, it's easy to forget that Reacher wasn't the beginning of Ritchson's career, but it was the payoff. He spent nearly 20 years bouncing between network dramas, cult comedies, superhero shows, blockbuster franchises, and independent action films before finally landing the role that made him a household name. These are the 10 performances that stand above the rest.

10 Arthur Curry (Smallville)

Before Jason Momoa made Aquaman cool, Smallville introduced its own version of Arthur Curry. Ritchson was the first live-action Aquaman. He first appeared in the Season 5 episode "Aqua" and reprised the role in three later episodes across several seasons.

Looking back, it's fascinating to see how naturally Ritchson fit the superhero mold from the beginning. He had the size, charisma, and easy confidence to stand alongside Tom Welling's Clark Kent, making it no surprise Hollywood kept calling him back for superhero roles over the next decade.

9 Arthur Bailey (Blood Drive)

Blood Drivewas one of television's weirdest one-season wonders. Set in a grindhouse-inspired future where cars run on human blood, the Syfy series cast Ritchson as Arthur Bailey, a by-the-book cop forced into a cross-country death race alongside a dangerous driver named Grace (Christina Ochoa).Blood Drive demanded actors who could commit completely to its outrageous premise, and Ritchson never once winked at the audience. His straight-faced performance gave the series an emotional anchor, proving he could carry a leading role even when everything around him was gloriously insane.

8 Gloss (The Hunger Games: Catching Fire)

Ritchson didn't have much screen time as Gloss, the former career tribute from District 1 who returns for the Quarter Quell, but he made an impression. Alongside his sister Cashmere (Stephanie Leigh Schlund), Gloss embodied the polished confidence and deadly efficiency that made the career tributes so intimidating.

Sometimes an actor only needs a few scenes to leave a lasting impression. Ritchson used his physical presence to immediately establish Gloss as a genuine threat, showing he could command attention even in a massive ensemble. At least until Katniss (Jennifer Lawrence) shot him in the chest with an arrow.

7 Hal (Ordinary Angels)

Based on a true story, Ordinary Angels stars Hilary Swank as a struggling hairdresser who rallies her Kentucky community to help a widowed father, played by Ritchson, whose young daughter desperately needs a liver transplant.

Reacher made Ritchson an action star, but Ordinary Angels reminded audiences that vulnerability can be just as compelling. His understated performance as a grieving father showed a dramatic range that Hollywood hadn't given him many opportunities to display.

6 Agent Aimes (Fast X)

Ritchson joined the Fast & Furious family as Agent Aimes, the hard-nosed successor to Mr. Nobody (Kurt Russell) who pursued Dominic Toretto (Vin Diesel) and his crew in Fast X before revealing that his loyalties weren't quite what they seemed.

In a franchise overflowing with larger-than-life personalities, Ritchson somehow carved out his own space. He brought just enough swagger, humor, and menace to make Aimes feel like more than another franchise newcomer, leaving many fans hoping the character returns for the saga's finale.

5 Anders Lassen (The Ministry of Ungentlemanly Warfare)

Director Guy Ritchie's The Ministry of Ungentlemanly Warfare offers a heavily fictionalized take on Winston Churchill's secret World War II mission known as Operation Postmaster. Ritchson stars as Anders Lassen, the real-life Danish soldier whose towering frame and fondness for knives make him one of the team's most intimidating members.

By the time the film was released in 2024, Hollywood had figured out exactly what Ritchson brought to an action movie. He wasn't just believable in a fight, he made it look like he was having fun. Whether he was quietly dispatching Nazi soldiers or carrying a bow almost as tall as he was, Ritchson stole nearly every scene he was in.

4 John Miller (Motor City)

In Motor City, Ritchson plays John Miller, a man recently released from prison who sets out on a relentless quest for revenge against the people who destroyed his life. Director Potsy Ponciroli strips dialogue to a bare minimum, forcing Ritchson to tell almost the entire story through action, expression, and silence.

Few actors could carry a movie while saying so little. Ritchson's performance is almost entirely physical, relying on subtle reactions and body language instead of lengthy speeches. It feels like the role he'd been preparing for throughout his career, proving he didn't need witty one-liners to command the screen.

3 Hank Hall / Hawk (Titans)

Ritchson spent three seasons as Hank Hall, better known as Hawk, the hot-headed half of the vigilante duo Hawk and Dove. Equal parts bruiser and broken man, Hank constantly struggled to balance his violent instincts with the relationships that mattered most to him.

Before Reacher, Titans gave Ritchson his most fully realized long-form character. He brought surprising vulnerability to a hero who could have easily been reduced to muscles and anger, turning Hawk into one of the series' emotional anchors. It also proved he had the charisma to anchor a franchise, even if he wasn't technically the star.

2 Thad Castle (Blue Mountain State)

Before audiences knew him as Jack Reacher, they knew Ritchson as the loudest, dumbest, most gloriously unhinged linebacker in college football. As team captain Thad Castle, Ritchson transformed what could have been a one-note bully into the chaotic heart of Blue Mountain State, delivering endlessly quotable lines and fully committing to every ridiculous situation the show threw at him.

Comedy is harder than it looks, and Ritchson made it seem effortless. His fearless performance helped turn Blue Mountain State into a cult favorite that remains one of the defining comedies of the 2010s. More than a decade later, Thad is still the role many fans quote back when they meet him.

1 Jack Reacher (Reacher)

Lee Child's military police investigator had already made the leap to the screen once before, but many readers never accepted Tom Cruise as the physically imposing Reacher they had imagined from the novels. Ritchson changed that almost immediately. From the moment he walked into Margrave in the opening episode, he looked, sounded, and carried himself exactly like the character fans had been waiting for.

Some actors find the perfect role. Others redefine it. Ritchson accomplished both. Reacher didn't just make him a star — it validated years of steady work across comedies, superhero shows, indie thrillers, and blockbuster franchises. Every role on this list helped get him there. Reacher is simply the one the rest of the world finally noticed.

Bonus: American Idol

Ok, fine. Here's a clip of Ritchson on American Idol.