Companion (Doctor Who) companions too have been depicted in the revived era, such as Jo Grant (n/k/a Jo Jones)'s grandson Santiago Jones; and Sarah Jane Smith's parents, adopted son Luke Smith, adopted daughter Sky Smith, and alternate timeline fiancé Peter Dalton; and Alistair Lethbridge-Stewart's daughter Kate Stewart. Another change in the revived era is the depiction of many companions' pre-Doctor lives, particularly their childhoods; no companion was so depicted in the classic era, aside from John Benton being temporarily 'de-aged' by The Master. Companions Rose Tyler, Mickey Smith, Adelaide Brooke, Amy Pond, Rory Williams, River Song and Clara Oswald have all been portrayed
Crystal the Monkey Crystal. He named her Crystal, a namesake to a country music singer Crystal Gayle. "New York" magazine's Benjamin Wallace wrote, "It was like she was born to perform." Gunderson and Crystal worked together for eight years at the Animal Actors stage show. Because the show was marked by pyrotechnics and noisy, cheering audiences, Gunderson said it was "a boot camp" and "a great way for a monkey to grow up and become habituated for this kind of environment". Unlike the majority of monkeys who were bothered by high volume music and children, Crystal was remarkably mature. Rather than destroy a