Theo Devaney plays Gavin MacLeod, taking over the role from Adam Groves who played Gavin in 6.04 Weekend At Bobby's. Gavin is the son of Crowley who originally died in 1723, then time traveled to 2014 where he currently remains. Theo was born in London, England and was raised in Wiltshire, England. He currently resided in Vancouver, Canada. Theo attended the 2014 Vancouver VFX Con night, which is an unofficial event held just after the Creation Supernatural Convention in Vancouver by the VFX crew. He discussed some of the ways that VFX was used during his scenes and performed a 'possession dance' for the fans.
Theo supported the attempts of the fans to get Supernatural aired in the UK again, by taking part in the #UKNeedsSPN selfie campaign.