Captain America: Civil War - 16 Things We Learned From The Directors' Commentary
2. There's Another Russo Cameo
It's revealed towards the end of the track that the cherished voicemail that Zemo keeps of his wife on the day of her death was recorded by Anthony Russo's wife. That cameo joins Joe Russo's cameo as Dr. Broussard who Zemo kills, and an appearance by Sophia Russo as "Teenage Girl."
The directors also confirmed that there's a very brief cameo by a former Avenger.
They point out that if you look closely at Scarlet Witch's room when Vision comes to retrieve her, there are photographs of a young boy in amongst her stuff. They're keepsakes of her brother.
