Brian Altemus is an American actor and former fashion model best known for his work in television and film, including roles in Grand Army, The Time Traveler’s Wife, Pretty Little Liars: Original Sin, Harlan Coben’s Shelter, and the 2024 feature film Mean Girls. After establishing himself in high-fashion modeling, Altemus transitioned into acting, where he has focused on character-driven roles and steady career growth rather than rapid celebrity exposure.
Quick Profile
- Full Name: Brian Altemus
- Date of Birth: April 30, 1997
- Age: 29 years old (as of 2026)
- Birthplace: Wyndmoor, Pennsylvania, United States
- Nationality: American
- Profession: Actor, Model
- Years Active: 2019–present
- Known For: Grand Army, The Time Traveler’s Wife, Pretty Little Liars: Original Sin
Early Life & Background
Brian Altemus was born on April 30, 1997, in Wyndmoor, Pennsylvania. He grew up in the northeastern United States and developed an interest in creative expression at a young age. While he has not publicly shared extensive details about his upbringing or family, his career path reflects a disciplined and deliberate entry into the entertainment industry.
Age & Birthday
Brian Altemus celebrates his birthday on April 30 each year. As of 2026, he is 29 years old. His zodiac sign is Taurus.
Height & Physical Appearance
Brian Altemus stands approximately 6 feet 2 inches (1.88 meters) tall. His tall, lean build and defined features contributed to his early success in fashion modeling and continue to support his on-screen presence as an actor.
Modeling Career
Before pursuing acting full-time, Brian Altemus worked as a professional fashion model. He was signed with NEXT Management and appeared in editorial shoots and fashion campaigns that emphasized modern, minimalist aesthetics.
His modeling background provided strong camera awareness, posture, and visual discipline—skills that translated naturally into acting.
Acting Career
Brian Altemus gained wider recognition with his role as Luke Friedman in the Netflix series Grand Army (2020). The performance marked his transition from modeling into professional acting.
He later portrayed Young Henry DeTamble in HBO’s The Time Traveler’s Wife (2022), followed by appearances in Pretty Little Liars: Original Sin and Amazon Prime Video’s Harlan Coben’s Shelter (2023), where he played Troy Taylor.
In 2024, Altemus appeared in the musical film adaptation of Mean Girls, further expanding his presence in mainstream cinema.
Notable Filmography
- Grand Army (2020) – Luke Friedman
- The Time Traveler’s Wife (2022) – Young Henry DeTamble
- Pretty Little Liars: Original Sin (2022)
- Harlan Coben’s Shelter (2023) – Troy Taylor
- Mean Girls (2024) – Shane Oman
Parents & Family
Brian Altemus has chosen not to publicly disclose information about his parents or family members. He maintains a clear boundary between his personal life and professional career.
Relationship Status
As of 2026, Brian Altemus has not publicly confirmed being married and has not disclosed details about a spouse or long-term partner. His relationship status remains private.
Social Media Presence
Brian Altemus is active on Instagram under the handle @brianaltemus, where he shares updates related to acting projects, professional photography, travel, and select personal moments. His online presence remains curated and career-focused.
Trivia & Lesser-Known Facts
- He began his career in fashion modeling before transitioning into acting.
- He was signed with NEXT Management during his modeling years.
- He portrayed a younger version of a lead character in The Time Traveler’s Wife.
- He prefers privacy and avoids excessive personal publicity.
- His career reflects a steady, long-term approach rather than rapid fame.
FAQs
Who is Brian Altemus?
Brian Altemus is an American actor and former fashion model known for television and film roles.
What is Brian Altemus’s age?
He is 29 years old as of 2026.
How tall is Brian Altemus?
He is approximately 6 feet 2 inches (1.88 meters) tall.
Is Brian Altemus married?
There is no publicly confirmed information indicating he is married.