Heartstopper Season 3 Has "Runaway" Crossover with Doctor Who https://bleedingcool.com/tv/heartstopper-season-3-has-runaway-crossover-with-do… Created Sat, 05/10/2024 - 00:37 Did you catch that Season 3 "crossover" between Showrunner Alice Oseman's Joe Locke and Kit Connor-starring Heartstopper and Doctor Who?