If I’m correct Bruce lee a renown martial artist had his mars in the 8th house along with Jackie chan who have both been grounding breaking and leaders in their respective field(Drunken Fist and dragon fist) Marylin Monroe as well with her mars and Uranus falling simultaneously in her 8th house.
Lana Del Rey also has her Neptune in her 8th house. Selena Quintanilla-Perez had her Uranus and her Pluto both in her 8th house followed by Lilith. There is also a notable 8th house presence with the generational planets which usually indicates past life resonance and or angelic/demonic spiritual presence. Whitney Houston had her moon in Aries opposing her libra mars, whilst also having her Virgo mercury opposing her Pisces ascendant. Respectively his Aquarius moon formed an inconjcunt to his sun. Michael Jackson had his sun in Virgo and his moon in Pisces. This I believe is what causes the personality extremes in their character.
Usually they’ll have one sign followed by its opposite via house position or by actually having the sign in that planet. I’d love to sit here and say that there is a particular indication but sadly I cannot! If anything I’ve noticed in all artist alike there’s one stand out quality which is that they have see-saw energy.