|First episode|| |
The Lizard-Spock Expansion (Cameo Appearance)
|Portrayed by|| |
The father of Howard Wolowitz is the ex-husband of Mrs. Wolowitz and the father-in-law of Bernadette Rostenkowski. He left his wife and his son when Howard was 11, which was mentioned in "The Precious Fragmentation", "The Fish Guts Displacement" and "The Habitation Configuration". His whereabouts are currently unknown.
In the episode "The Closet Reconfiguration", Sheldon finds a letter written by Mr. Wolowitz in Howard's closet. The letter was sent to Howard on his 18th birthday, but he has never read it and refuses to do so by burning it in the sink. Only Sheldon knew what the letter said. When he told all his friends, except Howard, they devised a plan to each tell him a different story about what was in the letter, with only one story being true. Raj told Howard that the letter was a birthday card, saying "Happy birthday, Howard. I love you." Sheldon told him that it was a map to the treasure of One-Eyed Willie. Amy told him that his father was in the auditorium on his high school graduation and he cried because he was so proud of his son. Penny told Howard that his dad had a secret life that eventually caught up to him and the only way to keep his family safe was to leave. Leonard told Howard that his father wanted him to know that family is the most important thing and not to throw it away like he did. Bernadette told Howard that inside the envelope was a picture of his father holding him as a baby, with the back saying "Howard my son, my greatest gift." It's never revealed which story is the truth (Sheldon confirmed that his story was fake because he said that he wanted to change his'), although Howard states that he wishes they were all true.
- The Lizard-Spock Expansion (Cameo) (First Appearance)
- The Precious Fragmentation (Mentioned) (Second Appearance)
- The Engagement Reaction (Possible Photo) (Third Appearance)
- The Russian Rocket Reaction (Mentioned) (Fourth and Last Appearance)