In the unpredictable landscape of Hollywood, maintaining a steady, beloved career across four different decades is a rare feat. Many stars burn brightly for a season or two before fading into trivia questions, but Chris O’Donnell has managed to stay a comforting, reliable fixture on our screens.
Armed with a sturdy everyman charm and a classic, clean-cut charisma, O’Donnell spent the 1990s as the ultimate big-screen hero before completely conquering the world of network television in the 2000s and 2010s. To celebrate his big day, we are looking past his famous boyish smile to rank the 5 definitive on-screen roles that built his incredible entertainment legacy.
5. Dr. Finn Dandridge (“McVet”) in Grey’s Anatomy (2006)
Before Patrick Dempsey’s Derek Shepherd could fully secure his happy ending, O’Donnell arrived at Seattle Grace Hospital to throw an absolute wrench into the narrative. Playing Finn, the incredibly stable, sweet, and patient veterinarian who competes for Meredith Grey’s affections, O’Donnell brought an effortless charm to Shondaland. It was a vital, multi-episode transition role that proved his cinematic “golden boy” aura translated flawlessly to modern primetime television.
4. D’Artagnan in The Three Musketeers (1993)
In the early 1990s, Disney assembled a powerhouse squad of young Hollywood heartthrobs—including Charlie Sheen, Kiefer Sutherland, and Oliver Platt—to bring Alexandre Dumas’s classic novel to a new generation. O’Donnell was cast as the hot-headed, fiercely ambitious D’Artagnan. Delivering high-energy sword fights, flying kicks, and plenty of witty banter, his performance anchored the swashbuckling adventure comedy and turned it into an absolute staple of 1990s childhood nostalgia.
3. Dick Grayson / Robin in Batman Forever (1995) & Batman & Robin (1997)
Taking on the mantle of the Boy Wonder in the mid-90s was a massive pop-culture milestone. First pairing up with Val Kilmer’s Dark Knight in Joel Schumacher’s Batman Forever, O’Donnell brought a gritty, leather-jacket-wearing, motorcycle-riding edge to Dick Grayson. While the infamous 1997 follow-up Batman & Robin (opposite George Clooney) temporarily halted the franchise due to its campy tone, O’Donnell’s performance as the eager, rebellious sidekick remains an indelible, highly nostalgic pillar of modern superhero movie history.
2. Charlie Simms in Scent of a Woman (1992)
Every young actor dreams of a breakout dramatic moment like this. Holding his own as a quiet prep school student hired to look after a blind, crusty, and intensely volatile retired Army Lieutenant Colonel, O’Donnell delivered a performance of incredible moral integrity. While Al Pacino famously took home the Best Actor Oscar for his roaring performance, O’Donnell earned a highly deserved Golden Globe nomination for Best Supporting Actor, instantly catapulting him onto the industry’s official A-list.
1. Special Agent G. Callen in NCIS: Los Angeles (2009–2023)
While his early movie career gave him global stardom, his extraordinary 14-season run as the mysterious, deeply guarded team leader G. Callen earned him an untouchable place in television history.
Anchoring the wildly successful CBS spin-off alongside LL Cool J for over 300 action-packed episodes, O’Donnell balanced slick tactical gunplay with an enduring, emotional search for his character’s hidden family past. It was a masterclass in primetime television endurance, winning over millions of households worldwide and solidifying him as a permanent icon of modern procedural entertainment.
