Matulis started Star Trek franchise as various characters in Insurrection, Nemesis and the series Star Trek: Enterprise.
In the short film Je dis non, Ali, Matulis played two characters and showed abilities outside of acting. He contributed as a producer, sound designer and visual effects artist for the film.
In 2012, he contributed to the parody web series, Harry Potter and the Ten Years Later where he played the role of Stretch and worked as an editor and cinematographer.
His other film work includes Land of the Lost, The Apparition, Shadows and Men in Black 3.
He also played multiple characters on horror/mystery series Sleepy Hollow from 2013 to 2015.