Daniel A. Jost is the father of comedian Colin Jost and writer and producer Casey Jost. He is also the longtime husband of Dr. Kerry Kelly, a former Chief Medical Officer of the New York City Fire Department.
Daniel studied at Brown University and earned a master’s degree in Civil Engineering from the Massachusetts Institute of Technology. He later worked as a teacher and became involved in community and charitable work on Staten Island.
Daniel A. Jost’s Profile Summary
| Detail | Information |
|---|---|
| Full name | Daniel A. Jost |
| Known for | Father of Colin and Casey Jost |
| Birthday | Not publicly confirmed |
| Birthplace | Not publicly confirmed |
| Nationality | American |
| Parents | Mr. and Mrs. John A. Jost |
| School | Pingry School |
| College | Brown University |
| Graduate school | Massachusetts Institute of Technology |
| Degree | Master’s in Civil Engineering |
| Profession | Former teacher, community supporter |
| Former workplace | Staten Island Technical School |
| Community role | Staten Island Museum Board of Trustees |
| Wife | Dr. Kerry Kelly |
| Engagement | October 1974 |
| Reported wedding period | June 1975 |
| Children | Colin Jost and Casey Jost |
| Daughter-in-law | Scarlett Johansson |
| Religion | Roman Catholic |
| Net worth | Not reliably known |
Daniel A. Jost’s Age and Birthday
Daniel’s exact date of birth has not been publicly confirmed in the available information.
His birth year and current age are also not reliably known.
Daniel A. Jost’s Early Life
Daniel A. Jost was born to Mr. and Mrs. John A. Jost.
His parents reportedly lived in Lavalette, New Jersey. However, this does not confirm that Daniel was born there.
His father was reportedly a businessman.
There is little reliable public information about Daniel’s childhood or siblings.
Daniel Attended Pingry School
Daniel A. Jost attended Pingry School in Hillside, New Jersey.
The available information does not give his graduation year.
Daniel Graduated From Brown University
Daniel A. Jost later studied at Brown University.
He graduated from Brown, although his undergraduate major and graduation year are not given in the available information.
He continued his education after completing his studies there.
Daniel Earned a Master’s Degree From MIT
Daniel A. Jost attended the Massachusetts Institute of Technology, better known as MIT.
He earned a master’s degree in Civil Engineering.
His education gave him a strong technical background, although he later chose to work in education.
Daniel A. Jost’s Teaching Career
Daniel A. Jost worked as a teacher at Staten Island Technical School.
The available information does not identify the exact subject he taught or how many years he worked there.
He eventually retired from teaching.
Some sources also describe Daniel as a businessman. However, there is little reliable information about a specific company that he owned or managed.
Daniel’s Work With the Staten Island Museum
Daniel A. Jost became involved with the Staten Island Museum.
He reportedly served as Vice Chairperson of the Staten Island Museum Board of Trustees.
His work included fundraising and supporting programs connected to the Staten Island community.
His wife, Kerry Kelly, also participated in these efforts.
Daniel and Kerry supported Mount Manresa.
Daniel and Kerry are described as Roman Catholics.
They were involved in fundraising for Mount Manresa, a former Jesuit retreat center on Staten Island.
Mount Manresa was sold in 2013.
After its sale, members of the group connected to the retreat shifted some of their community work toward rebuilding the Staten Island Museum guild.
Daniel’s Community Fundraising
Daniel and Kerry continued participating in fundraising events connected to the Staten Island Museum.
In 2016, they attended a cabaret fundraiser at the Hilton Garden Inn in Bloomfield.
The event was organized by the museum guild.
Daniel and Kerry were also reported to have danced during the event to music performed by a group called Memories.
Daniel later attended the Staten Island Museum’s 140th Anniversary Gala with his wife.
The gala raised money for the museum’s youth programs.
Daniel A. Jost’s Wife Is Dr. Kerry Kelly
Daniel has been married to Dr. Kerry Kelly for decades.
Their engagement was announced in October 1974.
A New York Times announcement cited in the supplied information said the couple planned to marry in June 1975.
The exact wedding day is not provided in the available material.
Daniel and Kerry were both pursuing advanced education around this period.
Who Is Dr. Kerry Kelly?
Kerry Kelly is a physician best known for her long career with the New York City Fire Department.
She attended Notre Dame Academy before studying at Vassar College, where she reportedly graduated cum laude.
She also spent a semester at Princeton University as a special student.
Kerry later earned her medical degree from Brown University Medical School.
Kerry Kelly’s Career With the FDNY
Kerry became a Medical Officer with the FDNY.
According to the supplied information, she became Chief Medical Officer about 13 years later.
She then served as Chief Medical Officer for approximately 24 years before retiring from the FDNY in 2018.
Kerry has also been involved in medical care for firefighters affected by health problems related to the September 11 attacks.
The supplied source connected her with Northwell Health and the World Trade Center Health Program. These were reported roles at the time of that source and should not automatically be treated as her current positions in 2026.
Daniel and Kerry Have Two Sons
Daniel and Kerry are the parents of two sons:
- Colin Jost
- Casey Jost
Both entered the entertainment industry and became known for comedy.
Daniel has appeared publicly with both sons and has also been mentioned in Colin’s interviews and stories.
Who Is Colin Jost?
Colin Jost is Daniel and Kerry’s elder son.
He is a comedian, writer, actor and television personality best known for his work on Saturday Night Live.
Colin became particularly well known as a host of the show’s Weekend Update segment.
He grew up on Staten Island and attended Regis High School in Manhattan.
Colin Rode the Staten Island Ferry to School
While attending Regis High School, Colin regularly used the Staten Island Ferry to travel from Staten Island.
Years later, he became part of a group that purchased a decommissioned Staten Island Ferry.
His childhood connection to the ferry made the investment personally meaningful.
Daniel Advised Colin About Buying the Ferry
Daniel gave Colin practical advice when his son considered investing in the ferry.
He reportedly encouraged Colin to “do his homework” before making the investment.
Daniel later rode the ferry with Colin after his son became one of its owners.
Colin Jost Married Scarlett Johansson
Colin married actress Scarlett Johansson in 2020.
Scarlett is known for playing Natasha Romanoff, also known as Black Widow, in the Marvel Cinematic Universe.
She also has a daughter, Rose Dorothy Dauriac, from her previous marriage to Romain Dauriac.
Colin and Scarlett later welcomed a son named Cosmo.
Daniel and Kerry Expected a Prank at Colin’s Wedding
Colin’s Saturday Night Live colleague Michael Che had talked about disrupting Colin and Scarlett’s wedding as a joke.
Che ultimately decided not to do it.
He later said Daniel and Kerry asked why he had not gone through with the prank because they had expected him to do something.
The story came from Che’s account of the wedding.
Who Is Casey Jost?
Daniel and Kerry’s younger son is Casey Jost.
Casey was born on June 17, 1985, according to the supplied information.
He is a writer, producer, comedian, actor and musician.
Casey Jost and Impractical Jokers
Casey is known for his work with Impractical Jokers.
He has worked as a writer and producer for the comedy series.
He has also been associated with Inside Jokes, a companion series connected to Impractical Jokers.
Casey is married to Lisa Kleinman.
Daniel Is a New York Giants Fan
Daniel is reportedly a fan of the New York Giants.
He has attended football games with Colin and Casey.
Colin once shared a story about attending a Giants game against the Chicago Bears with his father and brother.
According to Colin, some Bears fans sitting behind them were using cocaine. Colin noticed what was happening before Daniel realized it.
The story is one of several family memories Colin has shared publicly about his father.
Daniel’s Public Appearances With His Family
Daniel has attended several public and charity events with Kerry, Colin and Casey.
On October 2, 2017, Daniel appeared with Colin and Casey at the 2nd Annual Laughs On The Links Celebrity Golf, Tennis & Bocce Outing at Richmond County Country Club in New York.
Daniel and Kerry also appeared with Colin at Answer the Call’s 5th Annual Red & Blue Soiree at The Bowery Hotel on May 23, 2017.
Daniel Supported Events for Police and Firefighter Families
Daniel and Kerry have also attended fundraising events supporting families of New York police officers and firefighters.
They appeared with Colin at the 4th Annual New York Police and Fire Widows & Children’s Benefit Kick-off to Summer Benefit on May 24, 2016, at The Bowery Hotel.
Daniel, Kerry and Colin had also attended the organization’s third annual summer benefit at the Empire Hotel Rooftop on May 19, 2015.
These appearances were connected to causes that were also relevant to Kerry’s long career with the FDNY.
Daniel A. Jost’s Relationship With His Sons
Public appearances and Colin’s stories show that Daniel has remained involved in his sons’ lives.
He has attended charity events and football games with them.
He also advised Colin when he considered investing in the Staten Island Ferry.
Daniel has appeared publicly with both Colin and Casey at events in New York.
Daniel A. Jost’s Net Worth
Daniel A. Jost’s personal net worth is not reliably known.
Some sources describe his family as wealthy, but there is no verified public information giving an exact figure for his income, assets or personal wealth.
Colin Jost’s or Scarlett Johansson’s net worth should not be used to estimate Daniel’s finances.
Daniel A. Jost’s Social Media
No verified public social media account belonging to Daniel has been established from the available information.
Any Instagram, Facebook or X account using his name should not be treated as official without verification.
Facts About Daniel A. Jost
- Daniel A. Jost is Colin and Casey Jost’s father.
- His exact birthday and age are not publicly confirmed.
- His parents were Mr. and Mrs. John A. Jost.
- His parents reportedly lived in Lavalette, New Jersey.
- His father was reportedly a businessman.
- Daniel attended Pingry School.
- He graduated from Brown University.
- He earned a master’s degree in Civil Engineering from MIT.
- He worked as a teacher at Staten Island Technical School.
- He later retired from teaching.
- He became involved in community fundraising on Staten Island.
- He reportedly served as Vice Chairperson of the Staten Island Museum Board of Trustees.
- Daniel and Kerry Kelly became engaged in October 1974.
- Their wedding was planned for June 1975.
- Kerry had a long medical career with the FDNY.
- Daniel and Kerry have two sons, Colin and Casey.
- Colin became known through Saturday Night Live.
- Casey became known for his work with Impractical Jokers.
- Colin married Scarlett Johansson in 2020.
- Daniel advised Colin before his Staten Island Ferry investment.
- Daniel is reportedly a New York Giants fan.
- He has attended several charity events with his wife and sons.
- Daniel’s personal net worth is not reliably known.
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