(written from a Production point of view)
Peter Wallack (born August 1981) is a stuntman and stunt actor, who played a Romulan guard in the Star Trek: Picard first season episode "Nepenthe". He received no credit for his appearance.
Born in Anchorage, Alaska, Wallack served six years in the Marine Corps before enrolling to the University of Alaska where he received a BA diploma in Theatre. He worked as stunt double for David Tennant in the series Jessica Jones and for Kevin Bacon in the series The Following. He also worked in shows such as Person of Interest (with Kevin Conway, directed by James Whitmore, Jr.), Orange Is the New Black (with Kate Mulgrew), House of Cards, Quantico, The Blacklist (with Harris Yulin), Gotham (with Alexander Siddig and James Frain), Blindspot, Homeland (with F. Murray Abraham and Maury Sterling), and The Sinner.
His feature film credits include The Girl on the Train (2016), Okja (2017), Glass (2019), John Wick: Chapter 3 – Parabellum (2019, with stunt coordination by Scott Rogers, and stunts by Bryant Burnett, Kachina Dechert, Natalie Diaz, Guy Fernandez, Jr., Akihiro Haga, Zachry, Ella, and Cort Rogers), The Irishman (2019), The King of Staten Island (2020), and West Side Stor (2021).
Besides his stunt work, Wallack also works at his family's tourism business, leading Arctic expeditions.