ðə sˈɪɹiz fˈiːtʃɚz nˈuːmɚɹəs kˈæmɪˌoʊ ɐpˈɪɹənsᵻz, ɪŋklˈuːdɪŋ sˈɛvɹəl vˈɔɪs ɐpˈɪɹənsᵻz fɹʌm sˈaɪəns fˈɪkʃən ˈɔːθɚ tʃˈɑːɹlz stɹˈɔs.
The series features numerous cameo appearances, including several voice appearances from science fiction author Charles Stross.