But those aren't the only dragons we want to see in the season finale. Dragons who need to show up in House of the Dragon's season 3 finaleVhagar at Harrenhal in House of the Dragon season 3. Tessarion, Jon Roxton (Joplin Sibtain), and fake Daeron (Charlie Gordon) in House of the Dragon season 3 | Image: HBO2. Dragons we don't want to see in House of the Dragon's season 3 finalePhoebe Campbell (Rhaena Targaryen) and Sheepstealer in House of the Dragon season 3. We'll see which of these dragons take to the skies when the House of the Dragon season 3 finale premieres this Sunday, August 9 on HBO and HBO Max.