The alter-ego was first used on a mission aboard Station Yomoint, when the crew had no medical personnel aboard. Since then, the character has been used several times, and continues to be used today. The character's personality is modeled after Dr. McCoy, from TOS, but the appearance is what cvscvs2 wears for his normal character, only with gold hair and a blue shirt. The gold hair is how the name "Dr. Golder" came about.
His rank is Lieutenant Commander.