Possible Clues:

• One habitually responding to situations in a sensational way
• She goes over the top to get role of Titania
• Titania for one is too fond of her scenes?
• Male or female prone to histrionics
• Melodramatic sort
• Gertrude, perhaps, a woman prone to histrionics
• Short piece about a person who's overly emotional
• Theatrical sort
• Play group prima donna?
• One prone to emotional display