Carlos (Eye of the Gorgon)
From Tardis Wiki, the free Doctor Who reference
Carlos was a salsa teacher.
He taught Chrissie Jackson how to dance salsa. When Ivan heard about that in 2008, he became jealous. Ivan hit him and Carlos lay on the ballroom floor with a bloody nose. Chrissie moved back to Alan and Maria because of this. She told Alan that there was nothing going on with Carlos. (TV: Eye of the Gorgon)