Summary
- Cast HBO Go Website: Open Chrome → Go to HBO Go website → Log In → Right-click on the screen → Tap Cast → Select Chromecast → Sources → Tap Cast tab → Play a video.
- Cast HBO Go App: Open HBO Go → Sign in → Click Cast icon → Select Chromecast → Play any video.
HBO Go is a popular streaming service owned by HBO. It includes all HBO movies, TV shows, documentaries, etc., in HD quality. From old classics to the latest movies and TV shows, you can find all the content in the HBO GO app. It was replaced by HBO Max on July 2020. But, you can still access this service via a website or app. The HBO GO app is available on both Play Store and App Store. If you want to cast and stream the HBO GO content on your Smart TV, you can do it with the help of a Chromecast Ultra or later Chromecast devices. You can Chromecast HBO GO in two different ways.
Note: HBO Go service is replaced by HBO Max in 2020. However, in some regions, you can access the HBO Go app. If you cannot access HBO Go, Chromecast HBO Max to your TV.
How to Chromecast HBO GO from Desktop [Google Chrome]
[1]: Set up the Chromecast device with your TV.
[2]: Connect your computer and the Chromecast device to the same WiFi network.
[3]: Now, open the Google Chrome web browser on your PC. Visit the HBO GO Official Website and sign in to your account.
[4]: Right-click anywhere on the screen and then choose the Cast option. Otherwise, you can find the cast option under the three-dotted menu.

[5]: From the list of available devices, choose your Chromecast device.

[6]: On the Sources drop-down, choose the Cast Tab option. Your current tab will start streaming onto your TV.
You have now successfully screen-cast HBO Go contents to Chromecast. In the same way, you can also cast HBO NOW on Chromecast TV.
How to Chromecast HBO GO from Smartphone [Android and iOS]
[1]: Connect the Chromecast device to your TV and set it up. Then, connect the Chromecast to the Wi-Fi network, same as your Smartphone.
[2]: Install the HBO GO app from the Play Store or App Store on your smartphone.
[3]: Launch the app after installation and sign in to the app using your account credentials.
[4]: Locate and tap the Cast icon (Android) or AirPlay icon (iOS) exhibited at the top.

[5]: Select your Chromecast from the pop-up menu.
[6]: Select your favorite content and watch it on your Chromecast-connected smart TV.
Frequently Asked Questions
HBO itself has got three applications. They have recently rebranded HBO Now to the HBO app and HBO Go with HBO Max.
The difference is based on the contents they offer. HBO Max features contents of the Warner media along with HBO live, etc. In contrast, HBO is limited to the contents of HBO TV.
Yes, you can Chromecast the HBO Max app. If you are using Chromecast with Google TV, you can directly install the HBO Max app on Google TV from the Play Store.