About Us
Transforming Communication Skills
At Charismark Communications, we equip executives, entrepreneurs, and thought leaders with the communication skills to thrive. Join us to unlock your potential and enhance your impact in every conversation.
Empowering Communication for Today's Leaders
The bottom line benefit is faster decision making, higher trust for increased sales, fewer stalled outcomes, reduced internal friction, and stronger performance in moments where miscommunication is most expensive. Communication stops being an effort and becomes a stabilizing force. Authority lands cleanly. Confidence transfers instantly. And presence itself increases alignment, credibility, and long term enterprise value for success.
Meet the Team
Discover the passion and expertise that drives our success.
Katerina Cozias
Founder & Senior Trainer
As a premium transformational leading expert in her field, Katerina Cozias is the Founder of Charismark Communications, sister-company to Hollywood-based VasGeo Media Corp., a boutique media training and production company. A dynamic speaker and trainer in the realm of communications, language patterning, media strategy and transformative leadership Katerina is a two-time published author, coveted key-note speaker, and professionally trained media personality with over 20-years in the Media & Communications sector. A natural talent with a proven portfolio of success, international travels have seen her present and train in cities including, but not limited to Miami, New York, Hong Kong, Athens, Moscow, Dubai, Cannes, Monte Carlo and The Bahamas.
Under her valued leadership, our trusted professional communication experts empower ambitious professionals and corporate teams to command attention, articulate purpose, and influence decisions with precision and results.
Aristotle Karas
Associate Trainer, Sales & High-Conversion Communication
With an entrepreneurial background in real estate sales Aristotle Karas is an Amazon best-selling coauthor and 25-year veteran in personal development, influence, and sales performance. Featured in The Wall Street Journal, as a professionally trained real-estate & charity auctioneer he has raised millions for global organizations including Make-A-Wish and St. Jude’s Children’s Research Hospital.
Aristotle has built his career on the art and psychology of sales. From cold outreach and objection handling to closing high-stakes negotiations Aristotle trains executives and sales teams to not only meet but to exceed their annual sales targets. His internal organizational protocols bridge communication gaps, align messaging across departments, and transform underperforming conversations into results-driven dialogue.
Having shared the stage with icons such as Harrison Ford, Morgan Freeman, Demi Moore, Les Brown, and Bob Proctor, Aristotle brings both stage presence and substance to every engagement.
Sylvia Becker-Hill
Associate Trainer, AI Change Management Consultant & Conversation Facilitator
Sylvia Becker-Hill is a corporate AI change management consultant, executive trainer, and coach specializing in human performance, decision-making, and leadership stability in AI-accelerated environments.
As organizations face unprecedented cognitive overload, identity disruption, trust erosion, and decision paralysis triggered by rapid AI adoption Sylvia works at the intersection of neuroscience, somatic intelligence, and strategic communication to help leaders and teams adapt without burning out, fragmenting culture, or losing authority. As a Charismark Associate -Trainer and with nearly three decades of experience advising executives across three continents Sylvia brings rare depth to the human side of technological transformation. She is a Certified Master Neuroplastician, an early pioneer of the coaching profession in Europe, and the creator of the proprietary Neuro Creativity® framework — a practical, science-based methodology that translates complexity into embodied capability. Her work addresses the real gaps AI exposes inside organizations: dysregulated nervous systems, performative leadership, diminished attention, fractured collaboration, and communication breakdown under pressure.
Sean Stewart
Associate Trainer, Executive Presence & Presentation Strategist
Sean D. Stewart is a communication strategist with over sixteen years of experience working with CEOs, founders, and visionaries. His work focuses on training executives and their teams to communicate with authenticity and personal integrity in environments where miscommunication carries real operational and financial risk.
With a background spanning two decades as a professional speaker, stage performer, and songwriter, Sean brings a rare mastery of presence, voice, and projection to leadership communication. Originally trained by Tony Robbins, over the course of his career Sean has worked with thousands of clients worldwide and has served as a trusted communication and sales advisor to top teams across industries. Sean has shared stages with many of the most recognized names in business and personal development and has been featured in The New York Times, NBC, and on the front page of Entrepreneur Magazine. In addition to being an esteemed Associate-Trainer with Charismark, Sean is also the CEO of Rock Your Gift and the founder of the Rock Your Gift three-day live experience where he continues to train professionals and creatives to communicate with authenticity, coherence, and authority when in the spotlight and beyond.
Anthony Lewis
Associate Trainer, Communication Architecture & Leadership Presence
Anthony Lewis is an International Coaching Federation (ICF) trained professional specializing in the human architecture behind effective communication, leadership presence, and personal influence. His work focuses on how individuals think, regulate emotion, and communicate under pressure, especially during moments of transition, complexity, and high stakes decision making.
Grounded in coaching psychology, emotional intelligence, and human centered development, as a Charismark Associate-Trainer, Anthony supports C-Suite leaders and top-tier professionals in strengthening their internal communication systems and navigating uncertainty & transition in order to strengthen emotional agility and adaptability. Anthony’s training method enables clearer communication, deeper listening, and composed leadership allowing top performing talent to develop into resilient and effective communicators during rapid times of change. Introducing applied communication training models that integrate mindset, emotional intelligence, and human behavior into how people show up, speak, lead and succeed, Anthony emphasizes that communication is not simply a skillset, it is an expression of internal coherence, reframing internal narratives to elevate presence and influence.
Patricia Kara
Associate Trainer, On-Camera Media Presence
Patricia Kara has been working in the entertainment business for over thirty years as an actress, model, spokesperson, and on-camera personality. As a long-standing primetime television personality, she is best known for her role alongside Howie Mandel on CNBC’s Deal or No Deal, and she is the only cast member aside from Howie to appear across all three versions of the franchise. Her extensive television background includes appearances on America’s Got Talent, Extra, Access Hollywood, HSN, the Fox Movie Channel, and People Magazine’s 100 Most Beautiful People providing her with deep fluency in high pressure, high visibility communication environments.
Through her work with global brands including AT&T, Unilever, Johnson & Johnson, Procter & Gamble, Disney, Princess Cruise Lines, and Toyota, Patricia has developed a refined understanding of how message, presence, and delivery directly shape public perception and real-world outcomes. As an esteemed Associate-Trainer with CMC, she now brings this expertise to our On-Camera Media & Communications team, helping professionals strengthen their on-camera charisma, executive presence, and message confidence & clarity across live, digital, and media platforms.
Susan Nefzger
Associate Trainer, Senior Communication & Public Relations Strategist
Susan Nefzger is a senior communications strategist with more than twenty years of international experience strengthening organizational credibility, public trust, and leadership voice across nonprofit, healthcare, and government environments. Her work centers on training leaders and teams to translate complex ideas into clear, human centered narratives that resonate with stakeholders, media, and internal audiences alike.
Susan specializes in integrated communications strategy, media engagement, and executive narrative development, supporting organizations where clarity, accuracy, and presence with the larger business community around them directly influence outcomes. She is widely respected for her ability to guide professionals in transforming technical or scientific material into compelling, accessible messaging without dilution of integrity and through omni-present media channels.
A nonfiction author in the mindfulness and self-awareness space, Susan brings a grounded, experiential approach to communication training. Her training methods emphasize focus, cohesion, and conscious leadership, helping individuals and teams communicate with intention, confidence, and credibility in an increasingly international business world.
Danielle Martins
Associate Trainer, Communication through Brand
Danielle Martins is a distinguished Personal Branding Strategist and Marketing Specialist with over 27 years of experience as a consultant, mentor, workshop facilitator, entrepreneur, best-selling author, and international speaker.
As a valued Associate Trainer with CMC, she empowers organizations, entrepreneurs and creatives of all types to communicate through the soul of their brand, turning authentic stories into strategic tools that captivate audiences and drive influence. Her signature approach merges storytelling as a communication superpower with the charisma and character of each client’s brand message, ensuring their presence resonates across every platform.
Danielle’s personal branding process guides clients to define their niche, communicate with precision, and design compelling narratives that convert visibility into credibility and long-term growth.
Having worked with clients across more than 27 countries, her expertise has been recognized by FOX News, NBC, ABC, CBS News and UBN Radio to name but a few. Danielle’s protocols and trainings assist professionals from diverse industries to use the subtle communication elements together with the essence of their brand to rise as trusted, influential leaders in their fields.
Sónia Cristina Paiva
Associate Trainer, Communication Through Image & Style
Sónia Cristina Paiva is a communications and confidence specialist who uses style as a strategic language for influence, credibility, and leadership presence. By treating image as a form of nonverbal communication, she enables professionals to project authority, confidence, and trust before a single word is spoken.
As the author of The Power of Image Sónia explores how visual communication shapes perception, confidence, and performance for both women and men in professional and public facing roles. With academic training in Management & Business Administration, a postgraduate degree, and foundational training as an Image Consultant she works closely with CMC clients to translate their style into a powerful communication system that supports leadership effectiveness, client engagement, and organizational success. By refining how individuals and brands are seen, Sónia equips them with the tools and image tactics to communicate confidence, strengthen influence, and lead with coherence across every professional environment for the win!
Rocky Miller
Director, Business Development
Maurice “Rocky” J Miller brings a diverse and accomplished background in business development, combining strategic foresight with a results-driven leadership style. With early roots in recruiting and sales management, Rocky quickly established a reputation for building high-performing teams and cultivating lasting client partnerships. Over the years, he has led growth initiatives across multiple industries—expanding portfolios, scaling revenue, and creating tailored development strategies for both elite corporate clients and emerging small businesses.
Now serving as Director of Business Development for Charismark Communications, Rocky oversees all facets of client acquisition, strategic partnerships, and revenue optimization. His expertise in market positioning and relationship management fuels measurable growth, driving both CMC’s expansion and the professional advancement of its clientele.
Maria Gkogkaki
Senior Manager, Global Outreach
Maria Gkogkaki serves as the Senior Manager of Global Outreach with CMC where she leads initiatives to expand the organization’s international presence, forge strategic partnerships, and strengthen cross-cultural engagement. Drawing on her deep academic and professional background, Maria oversees global communications, manages multicultural collaborations, and ensures that messaging and outreach strategies resonate authentically across diverse regions and audiences.
Maria holds two Master’s Degrees — one in Policy Evaluation from the University of Aberdeen, Scotland, and another in Global Citizenship, Identities, and Human Rights from the University of Nottingham, England — as well as a Bachelor’s Degree in History and Philosophy of Science from the University of Athens, Greece.
Maria’s passion for international connection extends beyond work — she enjoys traveling, exploring new cultures, and learning new languages, continually expanding her global perspective and presence.
Charismark Communication Highlights:
High-level communication training for next-level results.
In a world where AI accelerates information but limits human connection, communication becomes your strongest differentiator. Our trainings deepens your ability to engage with nuance, presence, and emotional intelligence, activating the human element that technology cannot replicate.
Where powerful communication becomes your greatest advantage.
Discover new methods to tackle real world challenges and drive outcomes in your favor. Our programs encourage innovative communication that transforms traditional approaches into effective solutions tailored for your unique team needs.