Free ComfyUI Workflow: Replace Anyone in a Video with AI

Effortlessly swap any character in a video with a person from a reference image using this incredibly simple and powerful ComfyUI Video Replacement Workflow. Powered by Wan 2.2 Animate and enhanced with Reactor for flawless faceswapping, this template turns a complex visual effect into a simple, two-click process.

Forget complicated masking or frame-by-frame editing. This workflow is designed for speed and ease of use, allowing content creators, meme makers, and AI artists to produce high-quality character replacement videos in minutes.

What Does This Workflow Do?

This ComfyUI workflow automates the entire process of replacing a person in a video. You provide a source video and a reference image of the new character. The workflow then uses an intuitive point-and-click system to identify the target character and seamlessly replaces them, applying their motion and context to your new subject.

To ensure a realistic and high-quality result, the process is finalized with the Reactor node, which performs an automatic, high-fidelity faceswap on the generated video.## Key Features

• 🎯 Simple Two-Point Selection: No complex masking needed. Just click two points on the video to define the area of the character you want to replace.
• 🤖 High-Quality Character Replacement: Leverages the Wan 2.2 Animate model to intelligently replace the subject while preserving the original video's motion.
• ✨ Flawless Faceswapping with Reactor: Automatically enhances the final video with a state-of-the-art faceswap for a clean, believable result.
• ⏱️ Fast and Efficient: Designed to be one of the quickest ways to perform video character replacement in ComfyUI.

How to Replace a Character in Your Video: A Simple Guide

Achieving this "magic" effect is incredibly straightforward.

1. Load Your Files:

   • Place your source video in the "Load Video" node.
   • Add your reference image (the character you want to insert) into the "Load Image" node.

2. Select the Target Character:

   • Run the workflow once. It will pause and display the first frame of your video in the "Points Editor" node.
   • Click two points to create a bounding box around the character you want to replace (e.g., one point at their top-left and one at their bottom-right).

3. Generate the Video:

   • Click "Queue Prompt" again. That's it!

The workflow will now process the entire video, replacing the selected character with the person from your reference image. The final step automatically runs the output through Reactor to perfect the face.

Who is This Workflow For?

This tool is perfect for:

• Content Creators: Quickly create viral videos, memes, and shorts.
• AI Artists: Experiment with narrative ideas by placing characters in new scenes.
• Filmmakers & Hobbyists: Prototype visual effects and character swaps without expensive software.
• Anyone New to ComfyUI: A great introduction to the power of AI video editing with a simple, user-friendly process.

Frequently Asked Questions (FAQ)

What is Reactor? Reactor is a popular and powerful custom node for ComfyUI that specializes in high-quality, fast faceswapping. This workflow uses it to ensure the final face looks crisp and realistic.

Do I need to install any custom nodes? Yes, you will likely need the custom nodes for Reactor and potentially others related to the Wan 2.2 Animate model. Use the ComfyUI Manager to easily install any missing nodes.

Can I use this on any video? Yes, it works on virtually any video where a character is clearly visible. For best results, use videos where the character to be replaced is well-defined against the background.

Download Your Free Video Replacement Workflow

Ready to start creating amazing video swaps? Download this free, easy-to-use ComfyUI workflow and unlock the magic of AI character replacement today.

[Download the Wan2.2 Animate: Replace Anyone Workflow Now]