Colman Domingo Matt Winkelmeyer/WireImage Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment Colman Domingo secretly joined the cast of Wicked: For Good, as none other than the voice of the Cowardly Lion. The movie and actor's Instagram accounts shared the news on Monday, after Jon M. Chu last week made headlines when he teased a big-name actor attached to the role.