# Runway Act-Two

> Transfers facial expressions and body motion from video onto characters.

Act-Two is a performance capture feature in Runway that animates a static image or existing video character using a driving performance video. It transfers speech, facial expressions, and upper-body gestures while automatically introducing realistic camera and environmental motion.

Website: https://help.runwayml.com/hc/en-us/articles/42311337895827-Performance-Capture-with-Act-Two

## What it is for

- Animate still character art or portraits using recorded webcam acting
- Transfer facial expressions and lip-sync speech onto non-human or stylized characters
- Produce dialogue scenes and character animation without motion capture suits
- Replace or modify facial performances in existing character videos

## Features

- Driving performance capture via webcam or uploaded video
- Supports character references as either static images or videos
- Gesture control for mapping hand and upper-body poses onto character images
- Adjustable facial expressiveness slider to balance motion fidelity and character consistency
- Automatic environmental and subtle handheld camera motion generation
- Voice replacement tool to change spoken audio after generation
- Multi-aspect ratio export (16:9, 9:16, 1:1, 4:3, 3:4, 21:9) at 24fps

## Pricing

Paid. Requires Standard plan or higher; costs 5 credits per second (3-second minimum).

## Details

- Type: Web app
- Category: [AI](https://xiry.app/topics/ai.md)
- Topic: [AI Video Generation](https://xiry.app/topics/ai/ai-video-generation.md)
- Open source: no
- Platforms: Web
- For: Animators, video creators, game artists, and filmmakers seeking rapid performance capture.
- Alternative to: Hedra Character-2, LivePortrait, Viggle AI
- Tags: video generation, motion capture, animation, lip sync, runway, character animation

## Why it was saved

- [@kiselevatut, 24 July 2025](https://www.instagram.com/reel/DMfVOvUtv3c/): Enables creators to produce expressive character animations, marketing creatives, and lip-synced scenes without high-end mocap equipment.

## Related

- [Runway](https://xiry.app/resources/runway): AI creative suite for generating and editing video, images, and animation (Web app, Freemium)
- [Pika](https://xiry.app/resources/pika): AI platform generating and editing video, image, and synchronized audio. (Web app, Freemium)
- [Hailuo AI](https://xiry.app/resources/hailuo-ai): AI video and image generator known for cinematic motion and physics (AI model, Freemium)
- [invideo](https://xiry.app/resources/invideo): AI-assisted multitrack video editor and text-to-video generator for creators and teams. (Web app, Freemium)
- [Kling AI](https://xiry.app/resources/kling-ai): AI video and image generator with advanced motion control and physical simulation (Web app, Freemium)
- [Google DeepMind Veo](https://xiry.app/resources/google-deepmind-veo): Generative AI video model producing cinematic footage with native audio (AI model, Freemium)

Updated 3 October 2026. Page: https://xiry.app/resources/runway-act-two

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