1. (noun) a person whose actions and opinions strongly influence the course of events

• influential person
• personage

1. (noun) a person whose actions and opinions strongly influence the course of events

• adult
• grownup

1. (noun) a person whose actions and opinions strongly influence the course of events

• behemoth
• colossus
• giant
• heavyweight
• titan
• big cheese
• big deal
• big enchilada
• big fish
• big gun
• big shot
• big wheel
• head honcho
• bigwig
• kingpin
• top banana
• celebrity
• famous person
• dignitary
• high muckamuck
• high-up
• panjandrum
• very important person
• vip
• elder statesman
• eminence grise
• excellency
• figure
• name
• public figure
• fixer
• influence peddler
• heavy hitter
• hierarch
• high-muck-a-muck
• pooh-bah
• kingmaker
• magnifico
• nepotist
• policy maker
• power broker
• powerbroker
• sacred cow
• sirdar
• socialite
• sun
• worthy