<P> "Suddenly Human" is 78th episode of the American science fiction television series Star Trek: The Next Generation, the fourth episode of the fourth season . </P> <P> Set in the 24th century, the series follows the adventures of the crew of the Federation starship USS Enterprise - D. In this episode, The Enterprise rescues a Starfleet admiral's grandson, long thought dead, but who had been adopted and raised by the enemies who killed the boy's parents . </P> <P> The Enterprise responds to a distress call from a Talarian vessel . They rescue five teenaged members, four of whom are Talarian, and one human, Jono (Chad Allen). </P> <P> Jono keeps to himself, but shows strict obedience to Captain Picard, which together with some unexplained past injuries leads Doctor Crusher to suggest Jono may have been physically abused . It is determined that Jono is Jeremiah Rossa, a long - lost Federation citizen . His grandmother is a Starfleet admiral, and he was orphaned ten years ago when his parents were killed in a skirmish with the Talarians . </P>

Who played jono on star trek next generation