1) High muckamuck 2) High-up 3) Important person 4) Influential person 5) Panjandrum 6) Person of high status 7) Personage 8) Very important person 1) Nabob 2) Panjandrum 3) Vip 
• (n.) One who possesses exalted rank or holds a position of dignity or honor; especially, one who holds an ecclesiastical rank above that of a parochial priest or clergyman.
Dig'ni·ta·ry noun ; plural Dignitaries . [ Confer French dignitaire , from Latin dignitas .] One who possesses exalted rank or holds a position of dignity or honor; especially, one who holds an ecclesiastical rank above that of a parochial priest or clergyman. 
a person who holds a high rank or office, as in the government or church.