How to Swap Characters in Video Using AI

One of the most requested features in AI video creation is the ability to replace a character in an existing video with a new person or character from a reference image. Whether you're producing marketing videos, social content, short films, or personalized stories, AI-powered character swapping saves enormous time and cost — no green screen or complex compositing required.

Our platform, powered by Wan AI Model Series, offers two powerful tools for video generation and editing. In this guide, we'll show you exactly how to swap characters in video using AI, and which tool delivers the best results.

Reference-to-Video vs Edit-Video: Which Tool to Use

See It in Action: Real Examples

Edit-Video Example: Style Transfer

Transform an existing video into a watercolor painting style using a simple text prompt:

"Transform the entire scene into a beautiful watercolor painting style. Soft brushstrokes, flowing paint washes, visible paper texture. Colors should bleed and blend naturally like wet watercolor on paper."

Reference-to-Video Example: Character Swap

Use a reference image to swap the character while preserving the original motion:

Reference Image:

"The referenced vintage car cruises along a winding coastal highway at sunset. Waves crash on cliffs below. The car's chrome bumpers and red paint gleam in the golden light. Camera follows from a helicopter angle. Classic Americana road trip feel."

Why Reference-to-Video Is the Best Choice for Character Swap

If you want to replace the actor in a video with someone from a photo, use the Reference-to-Video tool. This model excels at:

• Taking a reference image as the new character's appearance
• Using your source video to drive the motion and scene structure
• Maintaining strong identity consistency (face, body type, clothing, etc.)

Edit-Video is excellent for general edits like changing styles or backgrounds, but it usually produces weaker results when doing full character replacement.

Step-by-Step: How to Swap Characters in a Video Using AI

Step 1: Open the Reference-to-Video Tool

Log in to your dashboard and open the Reference-to-Video tool.

Step 2: Upload Your New Character Reference Image

Upload your new character reference image (or multiple images for better consistency). High-resolution, well-lit photos with clear facial features work best.

Step 3: Upload the Source Video

Upload the source video containing the original character. This provides the motion and scene structure for the swap.

Step 4: Write a Detailed Prompt

Write a clear, detailed prompt describing the desired output. Example:

"The woman from the reference image walks confidently down the busy city street, looking around curiously. She has the exact same face, hairstyle, and red dress as shown in the reference photo. Ultra realistic, maintain perfect identity."

Step 5: Adjust Settings

Configure duration (2–10 seconds recommended), resolution, aspect ratio, and seed for your character swap video.

Step 6: Generate and Iterate

Click generate, review the results, and iterate as needed until you achieve the perfect character replacement.

Pro Tips for Better AI Character Swaps

• Use high-quality reference photos: Well-lit images with clear facial features produce the best results.
• Choose clean source videos: Pick videos where the subject is clearly visible and not heavily occluded.
• Keep clips short: 5–8 seconds yields the best quality and fastest generation.
• Add negative prompts: Use terms like deformed face, blurry, extra limbs, identity mismatch, low quality to avoid artifacts.
• Upload multiple reference images: Showing different angles and expressions maximizes identity consistency.

Popular Use Cases for AI Character Swapping

• Marketing: Swap brand ambassadors in promotional videos without reshooting
• Social Media: Create personalized content quickly with different characters
• Storytelling: Maintain the same character across multiple scenes
• E-Commerce: Rapidly test different models or outfits in product videos
• Film & Post-Production: Replace actors in existing footage for reshoots

Start Swapping Characters in Your Videos

Character swapping with AI has never been easier. Our platform makes professional-grade video editing accessible to creators, marketers, and storytellers — no complex software required.

Ready to try it? Head to the Reference-to-Video tool in your dashboard and create your first AI character swap today.

What character swap projects are you working on? Share your results in the comments — we'd love to feature the best examples!