Robert Picardo is the actor best known to Star Trek fans for playing Starfleet’s Emergency Medical Hologram, most notably The Doctor on Star Trek: Voyager. He also played the EMH creator, Dr. Lewis Zimmerman, as well as some of his other holographic creations.
Robert Picardo – or “Bob”, as he likes to be called – was born in Philadelphia, Pennsylvania. He attended William Penn Charter School, graduating in 1971, after which he attended Yale University. Coincidentally, he entered Yale aiming towards a career as a doctor, having graduated from Penn Charter as a pre-med major. However, while there, he was hit with the acting bug after performing in several university productions and graduated with a BA in Drama in 1975. Little did he know that he would portray a doctor in numerous projects in the future.
In 1977, Picardo made his Broadway debut in a production of Gemini. Since then, he has had a long career on stage, in film and on television. He has also established himself as a singer and an author in recent years.
Source: Memory Alpha