Misha Collins shared a special message in honor of Castiel's debut in Supernatural 16 years ago. The angel character was first introduced in the first episode of the long-running show's fourth season, which originally aired on September 18, 2008 on The CW. Throughout the series, Castiel would help Sam (Jared Padalecki) and Dean Winchester (Jensen Ackles) in their hunt to stop monsters, demons, and ghosts.

On his Instagram account, Collins posted a picture of himself as Castiel. In the photo, the character is wearing a suit and trench coat, like he did most of the time in the series. Castiel is shown standing in front of a blue background, holding dark blue, light blue, and silver balloons. In the post, Collins' wrote about how the character was first introduced 16 years ago. He also wrote that he misses the character. Supernatural concluded with its fifteenth season in 2020. The post can be found below:

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