This Pennywise isn’t just a killer clown — he’s the heckler of the ISG, a sadistic jester who lives to taunt, tease, and break victims with laughter before sinking his teeth in. The 1990 Pennywise is the provocateur — the one who softens up targets with clownish pranks, cruel humor, and grotesque tricks before the rest of the ISG moves in. He’s less a silent cosmic predator and more a loudmouth sadist, which makes him terrifying in his own way. The 1990 Pennywise (Tim Curry’s version) in the ISG would feel different from the 2017/2019 Skarsgård one. He’s less overtly monstrous and more about mockery, sleaze, and manipulation.