Yes, Disney+ supports casting to Chromecast from the following devices:
Note: The above device must meet the standard Disney+ minimum specifications.
Disney+ also supports casting to the following Chromecast devices:
For the best experience, we recommend a high-speed Internet connection. (Please see this article for more details on the recommended Internet speed requirements for Disney+.)
To enjoy the highest-quality Disney+ experience, all components should support high-bandwidth digital content, including HDMI cables.
For 4K Ultra HD and HDR content, external displays should support HDCP 2.2.
Note: Older audio and video components can impact quality and possibly prevent playback entirely.