The Quiet One has these relationships to other tropes:

parents kids shares a parent with:
The Stoic
Beware The Quiet Ones
parent child
The StoicStoic Woobie
''Aloof Big Brother
''Emotionless Girl
''Shell Shocked Veteran
''The Silent Bob
''The Spock
''Sugar And Ice Personality
''Super Stoic Shopkeeper
''Stoic Spectacles
''Not So Stoic
You'll need to Get Known if you want to add or modify these relationships.