He's a central character in the epilogue, playing a significant role in the story:
* He's a Metamorphmagus: Like his mother, Teddy can change his appearance at will, a trait that makes him quite unique and endearing.
* He's a close friend to Harry Potter's children: Teddy is shown to have a strong bond with James Sirius Potter and Albus Severus Potter, which highlights the close connection between the next generation of wizards.
* He represents hope for the future: Teddy's playful nature and ability to adapt to his changing appearance symbolize the resilience and adaptability needed to move forward after the war.
Teddy's role in the epilogue helps to bring the story full circle and emphasizes the importance of family, friendship, and love in overcoming even the darkest of times.