Fundamental similarities between rogue and warrior classes?

1) What are the fundamental similarities among rogues/warriors/rangers?

2) Are there actually any real similarities among rogues/warriors/rangers? Is non-magic and physical adeptness/traits/attributes the closest things? I wouldn't say physical damage since rogues could be pure thieves that don't go into combat at all.

3) Are there any rogue/warrior/ranger subclasses that don't necessarily have to be physically trained? If we extend this to other genres, would hackers count as a rogue subclass?

4) Would physics also be a common factor? I mean rogues/warriors/rangers generally obey the laws of physics while magic doesn't right? What would be the mage equivalent in a scifi genre?

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