Guest Stars Kit Connor voices Pantalaimon Frank Bourke as Fra Pavel Joe Tandberg voices Iorek Byrnison Cristela Alonzo voices Hester David Suchet voices Kaisa David Langham as Father Garret Mat Fraser as Raymond Van Gerrit Peter Serafinowicz voices Iofur Raknison Joi Johannsson voices Iofur Raknison Ian Peck as Cardinal Sturrock Omid Djalili as Dr. Martin Lanselius Harry Melling as Sysselman of Trollesund