▁It ▁is ▁about ▁an ▁al ien ▁named ▁Jack ▁and ▁a ▁brother ▁and ▁sister ▁who ▁make ▁friends ▁with ▁him , ▁while ▁hiding ▁his ▁existence ▁from ▁their ▁parents . ▁First ▁created ▁in ▁ 2 0 0 9 , ▁its ▁TV ▁premi ere ▁was ▁scheduled ▁for ▁ 5 ▁September ▁ 2 0 1 1 , ▁but ▁actually ▁a ired ▁two ▁days ▁later . ▁As ▁of ▁ 2 0 1 4 ▁there ▁are ▁at ▁least ▁ 3 9 ▁episodes ▁in ▁the ▁series , ▁each ▁consisting ▁of ▁two ▁segments , ▁for ▁a ▁total ▁of ▁ 7 8 ▁individually - named ▁stories . ▁ ▁Char acters ▁Ali ens : ▁Jack ▁the ▁al ien ▁( V o iced ▁by ▁Rick ▁Jones ) ▁Ro cket ▁the ▁dog ▁( V o iced ▁by ▁Rick ▁Jones ) ▁C . H . I . P . ▁the ▁computer ▁( V o iced ▁by ▁Da wn ▁Ford ) ▁High ▁Commander ▁( V o iced ▁by ▁Kath le en ▁F ee ) ▁ ▁Earth lings : ▁N ico , ▁the ▁ 9 - year - old ▁elder ▁brother ▁( V o iced ▁by ▁Ele an or ▁No ble ) ▁Sam ▁the ▁younger ▁sister ▁the ▁sib lings ' ▁mom ▁( V o iced ▁by ▁Claud ia ▁B esso ) ▁the ▁sib lings ' ▁d ad ▁Y oki , ▁the ▁sib lings ' ▁black - ha ired ▁s lack er ▁pal ▁( V o iced ▁by ▁Hol ly ▁G auth ier - Fran kel ) ▁Mrs ▁We eb ler , ▁the ▁no sey ▁next ▁door ▁neighbor ▁and ▁a