Which Actors Played In The 100 TV Series?

The cast of 'The 100' is packed with talent, and over its seven-season run, we got to see some incredible performances. Eliza Taylor leads the pack as Clarke Griffin, the show's moral compass and protagonist who’s constantly forced to make impossible choices. Bob Morley brings depth to Bellamy Blake, whose arc from rebellious big brother to a leader torn by guilt is one of the show’s highlights. Then there’s Marie Avgeropoulos as Octavia Blake, who undergoes one of the most dramatic transformations—from a sheltered girl to the ruthless 'Bloodreina.' Lindsey Morgan’s Raven Reyes is another standout, with her genius-level engineering skills and resilience making her a fan favorite. Supporting roles are just as memorable. Richard Harmon’s John Murphy starts off as a selfish survivor but grows into someone far more complex, while Paige Turco’s Dr. Abigail Griffin and Henry Ian Cusick’s Marcus Kane bring gravitas to the adult leadership dynamics. Tasya Teles’s Echo and Shannon Kook’s Jordan Green add layers to the later seasons, and let’s not forget Adina Porter’s Indra, the fierce Grounder warrior who becomes a key ally. The show’s ensemble cast really sells the high-stakes survival drama, and each actor brings something unique to their role. It’s one of those rare series where even the side characters leave a lasting impression—like Christopher Larkin’s Monty Green, whose quiet heroism steals hearts. I still get chills thinking about some of their performances, especially in those gut-wrenching final seasons.

Oh, 'The 100' had such a dynamic cast! Eliza Taylor absolutely killed it as Clarke Griffin—her character arc from privileged Ark kid to hardened leader was insane. Bob Morley’s Bellamy Blake went from ‘whatever the hell we want’ to this deeply layered protector, and Marie Avgeropoulos as Octavia? Iconic. Lindsey Morgan’s Raven was the tech genius we all rooted for, and Richard Harmon’s Murphy? Surprisingly the best redemption story. Then there’s Henry Ian Cusick as Kane, whose moral dilemmas were chef’s kiss, and Paige Turco’s Abby Griffin, who balanced mom vibes with medical badassery. Let’s not forget Tasya Teles’s Echo, who evolved from enemy to fan favorite. The show wouldn’t be the same without this crew—each actor brought something raw and unforgettable to their roles.

Man, I totally binged that show last weekend! The character Jeffrey was played by actor Richard Harmon, who absolutely nailed the role with his intense yet nuanced performance. I first noticed him in 'The 100' as Murphy, but his portrayal here was next-level—mixing vulnerability with this eerie unpredictability. The way he delivered lines with that half-smirk? Chilling. Honestly, he’s one of those actors who makes even minor scenes unforgettable. If you haven’t seen Harmon’s other work, check out 'Channel Zero' or 'iZombie'—dude’s got range. He brings this raw energy to every role, like he’s either about to cry or stab someone. Jeffrey’s arc in the series was already compelling, but Harmon’s acting elevated it from 'good' to 'can’t look away.' Now I’m low-key hoping he gets more villain-type roles—he’s too good at them.

Tobias Menzies is the actor who plays Frank Randall on 'Outlander', and I still get chills thinking about how he makes that role quietly devastating. He brings a kind of steady, wounded dignity to Frank — the modern-day husband whose marriage to Claire has been strained by loss and distance. What I love about Menzies’ work here is the subtlety: the small looks, the tired patience, the way he carries regret without turning it into melodrama. It makes the scenes where Frank confronts Claire or tries to rebuild their life feel lived-in and painfully real. Beyond just Frank, Menzies also plays Black Jack Randall, which is a wild double-take every time you watch the show. Seeing the same face twisted into cruelty and menace in the 18th-century timeline deepens the emotional stakes in both storylines. I often find myself rewinding scenes to catch the tiny differences in posture and vocal tone he uses to separate the two men. His dual performance is one of the reasons 'Outlander' hooked me for good; it’s a masterclass in range that still lingers as one of my favorite casting choices.

The 100 has such a memorable ensemble cast that it's hard to pick favorites, but let me gush about the core actors who brought the post-apocalyptic world to life. Eliza Taylor absolutely owned the screen as Clarke Griffin, the reluctant leader whose decisions shaped the entire series. Alongside her, Bob Morley delivered a powerhouse performance as Bellamy Blake, with that perfect balance of rugged charm and emotional depth. Their dynamic—whether as allies, rivals, or something more—kept me glued to every season. Then there’s Marie Avgeropoulos as Octavia Blake, whose transformation from sheltered girl to brutal warrior was one of the show’s most gripping arcs. Lindsey Morgan’s Raven Reyes stole scenes with her wit and resilience, while Richard Harmon’s morally complex John Murphy became the character I loved to hate (and eventually just loved). Devon Bostick’s Jasper brought heartbreak with his tragic journey, and Paige Turco’s Dr. Abby Griffin added gravitas as Clarke’s mother. Oh, and how could I forget Isaiah Washington’s Chancellor Jaha, whose descent into obsession was chilling? The cast’s chemistry made even the wildest plot twists feel grounded—I still miss tuning in to their chaos every week.

The 100 has such an iconic ensemble cast, and it's wild how many of them became breakout stars after the show. Eliza Taylor absolutely crushed it as Clarke Griffin—she carried so much emotional weight while balancing leadership and survival instincts. Bob Morley’s Bellamy Blake was another standout, with that perfect mix of rugged charm and moral complexity. Then there’s Marie Avgeropoulos as Octavia, whose transformation from sheltered girl to ruthless warrior was jaw-dropping. Lindsey Morgan’s Raven brought tech genius and heart, while Richard Harmon’s Murphy stole every scene with his sarcastic redemption arc. Let’s not forget the adults either! Henry Ian Cusick as Kane and Paige Turco as Abby brought gravitas to the chaos, while Isaiah Washington’s Chancellor Jaha had this eerie, cult-leader energy later on. And how could I skip Devon Bostick’s Jasper? His tragic arc still haunts me. The show had this knack for making even side characters unforgettable—like Tasya Teles’s Echo, who went from antagonist to fan favorite. It’s one of those rare casts where everyone felt essential to the story’s DNA.

Watching 'Outlander' over a weekend binge, one performance kept snagging my attention: Frank Randall is played by Tobias Menzies. He brings a quiet, layered sadness to Frank that makes Claire's life choices feel weighty rather than melodramatic. What's extra clever about the casting is that Menzies also plays the monstrous Black Jack Randall, Claire's ancestor, and the contrast between the two is like watching a masterclass in restraint versus volatility. I got pulled in not just by the plot but by the little things—Menzies' posture, the way he uses a glance to communicate decades of disappointment, and then flips into vicious unpredictability as Black Jack. If you liked his work, you might enjoy seeing him in 'The Crown' where he plays Prince Philip with a completely different energy, or in 'Rome' for earlier, grittier work. For me, his versatility keeps rewatching rewarding and gives the whole show extra dramatic weight.

I'm thrilled you asked about 'Outlander' — that show's casting always gets me excited. The character Lizzie is played by Jessica Reynolds. She brings a lot of subtlety to the role, balancing vulnerability with a quietly unsettling edge that really sticks with you. I first noticed her in scenes that could have been easy to overlook, but she gave Lizzie small, telling moments that made the character feel real. If you liked how Lizzie came across on screen, check out a few interviews with Reynolds — she talks about bringing depth to smaller roles and how she approaches period pieces. Overall, I thought her performance added a lot to the season she was in and left a memorable impression on me.

One of the actors from 'The 100' who's been popping up everywhere lately is Eliza Taylor. She played Clarke Griffin, and after the show ended, she landed a role in 'The Orville'—a sci-fi comedy that’s way lighter than 'The 100.' Then there’s Bob Morley, who portrayed Bellamy Blake. He’s been in Australian dramas like 'Neighbours' and even dipped into indie films. I caught him in 'The Other Guy,' a quirky Aussie series, and his range is wild compared to Bellamy’s intensity. Richard Harmon, our beloved Murphy, has been busy too. He starred in 'The Killing' and 'Continuum,' which are both gritty and dark—totally his vibe. Marie Avgeropoulos (Octavia) showed up in 'Supernatural' and '50/50,' proving she can handle both horror and drama. Honestly, it’s fun seeing how these actors stretch their talents beyond the post-apocalyptic world we first knew them in.

Crazy to think how a single casting can redefine a whole story for me — Jamie Fraser (whose given name is James Alexander Malcolm MacKenzie Fraser in the books) is brought to life by Sam Heughan in the TV series 'Outlander'. I fell into the show like many fans did: curious about the hype, then absolutely hooked on the chemistry between him and Caitríona Balfe's Claire. Sam nails that mix of Highland fierceness and weary tenderness; he makes Jamie feel like a living, breathing person rather than just a romantic ideal lifted from Diana Gabaldon's pages. Watching him across seasons, you can see the physical and emotional commitment — the swordplay, the gait, the way he carries the weight of his past. There are moments where his Scottish roots and training shine through, but there's also a real softness in quieter scenes that convinced me he was the right pick. Beyond acting chops, Sam's off-screen presence (he's active with fans, charity work, and various projects) added to the fandom experience; seeing him at conventions or interviews only strengthened my appreciation for how he interprets Jamie. Fans who love the books will notice how certain subtleties are translated differently on screen, but Heughan’s performance often captures the heart of Jamie: loyalty, stubbornness, and an uncanny ability to love fiercely. If you want the quick factual bit: Sam Heughan plays Jamie/James Fraser on 'Outlander', and his portrayal has become iconic to many viewers worldwide. For me, his version of Jamie is why the show sticks with me — that blend of battle-scarred bravery and private vulnerability makes rewatching scenes feel fresh, and it’s one of those rare TV portrayals that actually deepened my love for the source material.