David Groh
David Lawrence Groh was an American actor best known for his portrayal of Joe Gerard in the 1970s television series Rhoda, opposite Valerie Harper.
Groh was born in Brooklyn, the son of Mildred and Benjamin Groh. He had a sister, Marilyn. He attended Brooklyn Technical High School, then enrolled at Brown University in Providence, Rhode Island, where he graduated Phi Beta Kappa with a degree in English literature.
Source: Wikipedia