Noun
castmate (plural castmates)
Someone with whom one performs together, as a member of a cast
I don't think it's unusual to spend time with your castmate. Isabel Lucas
Despite a distinguished acting career, in which he has appeared in a number of celebrated films, Steve Buscemi is also a frequent Adam Sandler castmate. Source: Internet
The pair's "Lord of the Rings" castmate also paid tribute, posting a still from "The Lord of the Rings: The Return of The King" in which he, Wood, shared a scene with Sir Ian and adding the caption: "Off to the Grey Havens goes dear Ian Holm. Source: Internet
Though uncredited, Murphy provided vocal work on SNL castmate Joe Piscopo 's comedy single, "The Honeymooners Rap." Source: Internet
"And so me being this new castmate and we kind of just all meshed really well together." Source: Internet
That castmate was not part of the 2014 show. Source: Internet