In 2022, he appeared in Season 2 of Star Trek: Picard as Jean-Luc's father in childhood flashbacks.[2][3] Callis attended the University of York, graduating in 1993 with a BA in English and Related Literature.Callis went on to attend the London Academy of Music and Dramatic Art, from which he graduated in 1996.In the same year, he was awarded the Jack Tinker Award (Theatre Record Critic of the Year) for Most Promising Newcomer for his performance in Old Wicked Songs, a two-hander by Jon Marans, in which he starred alongside Bob Hoskins.His directorial debut was Beginner's Luck, a co-production of his and writer/director Nick Cohen's Late Night Pictures and Angel Eye Film & TV, starring Julie Delpy, Steven Berkoff and Fenella Fielding.