Following a public panic attack, Kinnaman chose the scariest possible project: a 1.5-hour solo monologue with 16 characters. By intentionally confronting his greatest fear in its most extreme form, he was able to "go to war" with his anxiety and regain control.
For Kinnaman, preparation is the key to managing fear and anxiety. By controlling what he can—knowing his lines and the scene inside and out—he builds an "armor" that gives him the confidence to handle uncontrollable variables like difficult co-stars or directors.
Kinnaman ensures he works on any given scene for a minimum of three nights. He believes the crucial part of memorization happens during sleep, so the cycle of "work, sleep, work, sleep" is more important than the total hours spent studying. He aims for five nights for optimal recall.
Kinnaman argues that extreme preparation—knowing the scene and even other actors' lines by heart—is what allows for true creative freedom. This deep knowledge provides the confidence to play, improvise, and use unexpected moments, knowing you can always find your way back to the scene's core.
Joel Kinnaman describes the Hollywood value system as a stock market. An actor's value skyrockets after landing a major role but before the film's release. During this "hot period," the industry bets on potential success, offering opportunities that may vanish if the film underperforms.
After his film Robocop underperformed, Kinnaman noticed the quality of scripts he was offered declined. Instead of waiting, he told his agents he wanted to audition for everything again. This proactive move created positive momentum and ultimately led to his role in Suicide Squad.
Joel Kinnaman reflects that his tendency to adopt the habits and lifestyle of new places—a "traveler's mindset"—is part of his actor's toolkit. However, this same trait makes him inconsistent and unreliable in his personal life, as he's too easily influenced by his external environment.
Kinnaman acknowledges that a major challenge in his relationship is that he becomes a "different person" with each role, adopting new habits and personality traits. This lack of a consistent self creates instability and insecurity for his partner, who has to adapt every few months.
Joel Kinnaman uses art as a metaphor for a well-lived life. To be creative, playful, and even "lose control" without spinning out into chaos, you first need to establish a very strong and reliable structure. This applies to both his acting craft and his personal relationships.
Kinnaman had pectus excavatum, a chest indentation, and the shame surrounding it caused him to adopt a closed-off posture. This deeply affected his self-worth and behavior, illustrating how a physical issue can create profound psychological ripple effects that hinder potential.
In Scandinavia, being an "actor" is a respected profession demanding formal training and consistent work. Unlike in the US, where anyone can claim the title, there it signifies an earned, legitimate career. This cultural distinction shapes the weight and meaning of the professional identity.