I've heard a dog dies in S2 E8 and S2 E9 but I don't remember, S5 E13 there is a dead dog in the dumpster, and a character's dog died offscreen before the show's events
Venus is a transgender character introduced in S5 and some members of the club say potentially transphobic things that I don't remember. I don't think they're very harsh or said to her face. They poke fun at a character for fancying her
S1 E4 I don't know if she's hit onscreen or if she only says he hit her (Susie), S4 E10 pretty bad fight, S5 E12 they're not together but a character forces drugs into their ex's arm it's disturbing
In season 6 ep. 1 Otto is being r*ped on onscreen. It is graphic and nauseating to watch. Beware, if that bothers you I highly recommend skipping this episode.
S1 E3 (r*pe offscreen) S1 E8 (attempted r*pe) S2 E1 (r*pe) S5 E6 (2 characters are forced in bed but it is stopped) S6 E1 (r*pe and mention of it about a daughter to her father in a taunting way)
Character gets hand slammed in van door, S4 E10. I think S7 E7 classic finger in a box. Chucky's fingers are amputated offscreen, you don't see or hear anything it's just mentioned