Tragedy and the crew

[gakelly]

Picard- Seemed as though he was estranged with his father and brother
Riker- His mother died when he was young, he is estranged from his father
Worf- His parents were killed when he was a young child
Bev. Crusher- Her husband was killed
Wesley Crusher- His father was killed when he was a young child
Tasha- Her parents were killed when she was a young child
Data- Abandoned by his creator
Troi- Her father was killed when she was a young child
Ro- Parents were killed when she was growing up
Geordi- surprise! His parents both survived his childhood, but then his mother was killed in the line of duty

 

[Makarov]

Troi also had a sister who died I think

Picard seemed to have an OK relationship with his family until Generations. Seemed like any brothers who see each other now and then

 

[Keith1701]

Picard- Seemed as though he was estranged with his father and brother
Riker- His mother died when he was young, he is estranged from his father
Worf- His parents were killed when he was a young child
Bev. Crusher- Her husband was killed
Wesley Crusher- His father was killed when he was a young child
Tasha- Her parents were killed when she was a young child
Data- Abandoned by his creator
Troi- Her father was killed when she was a young child
Ro- Parents were killed when she was growing up
Geordi- surprise! His parents both survived his childhood, but then his mother was killed in the line of duty

 

[Keith1701]

All True for sure.

 

[shivkala]

It is a common trope for characters to have at least one dead parent, usually due to tragedy. If we're going beyond the death of loved ones, you could add Geordi being born with a defect that caused him to be blind.

 

[TimeIsAPredator]

Troi also had a sister who died I think

Picard seemed to have an OK relationship with his family until Generations. Seemed like any brothers who see each other now and then

Picard was very estranged from his family until just after Wolf359