No, Grandparents are not considered immediate, UNLESS they raised you. (or you say they raised you) Granting emergency leave is discretionary in this case, its up to the commander.
Rear Admiral Albert 'Al' Calavicci is the project observer at Quantum Leap, who appears to Samuel Beckett as a hologram. The part of Al is played by veteran stage and film/TV actor Dean Stockwell, who won a Golden Globe Award in 1990 for his supporting role as Al. Al Calavicci was born June 15, 1934. His father worked in construction and was of Italian descent and his mother was of Russian heritage. Al had a younger sister named Trudy, who suffered from Downs syndrome. Al also had an uncle named Stawpah, who was a coal miner.
Enter CAESAR; ANTONY, for the course; CALPURNIA, PORTIA, DECIUS BRUTUS, CICERO, BRUTUS, CASSIUS, and CASCA; a great crowd following, among them a Soothsayer.