Pearl Mackie is next companion up on Doctor Who now that Jenna Coleman has departed the show. Every companion has a different relationship with the Doctor. Some seem obsessed with snogging him (we’re looking at you, Martha Jones), while others are fearless friends. When we got the chance to sit down with Pearl Mackie and Peter Capaldi at New York Comic Con, we couldn’t help but ask them what to expect from Bill, the Doctor’s new partner in time and space.