Meet Our Staff



Rev. Thomas Demse, Pastor

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                                                     414-543-8292 || Click Here to Email                                                           

Hello, I am Fr. Tom Demse and I have been the pastor of St. Gregory the Great Parish for 6 years. I earned a Bachelor of Arts in Theology from St. Francis de Sales College in Milwaukee and went on to earn a Master of Divinity from St. Francis Seminary, where I was then ordained a priest for the Archdiocese of Milwaukee.
I have one older sister, Bonnie, who is married to her husband, Dan. They live in the Sturgeon Bay area. I also have one married younger brother, Chris, who lives with his wife Jeanne in Sunset Hills, Missouri. I am also blessed with one nephew, four nieces, seven grand nephews and one grand niece!
When I am not busy at St. Greg’s, I enjoy watching Packer games, going to a variety of theater and musical events in the Milwaukee Area, and going out to dinner with friends. I also look forward to visiting my family from time to time at their homes. I am an avid scrabble player and enjoy doing puzzles in the daily Milwaukee Journal. When I am home I enjoy surfing the web for interesting recipes to use when cooking meals.
The parishioners of St. Greg’s are very welcoming and live out the parish motto “Greatness through Service” in a variety of ministries, programs, and activities. It is an honor for me to preside and preach at Masses, Weddings, and Funerals and to pray with the community forth gathered. The parish staff is wonderful to work with and they are a very talented group of people.




Deacon Tim Waldoch   



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Deacon Jim Banach

414-543-8292 || Click Here to Email

Hi, I am Jim Banach and I am the deacon of St. Gregory the Great Parish. My areas of ministry include St. Greg’s and the Archdiocese of Milwaukee. Within St. Greg’s besides being at the altar to serve and preach, I work with the Arise program, preside for Baptisms, Weddings, and Funerals, teaching from time to time for the families in the Lighthouse Program and RCIA candidates. Mary and I meet with couples for marriage preparation. I do look around for folks in the parish to nudge into ministry. For the Archdiocese I serve on the Catholics for Peace and Justice Commission, represent the Archdiocese on the Wisconsin Council of Churches Faith and Order Committee, Serve as Past President of the Deacon Senate and with my wife facilitate Inquiry Sessions for those considering the call of the Diaconate. I also provide spiritual direction for deacon candidates as they work their way through formation.
In 2005 I was ordained a Deacon and have served at St. Greg’s ever since. Our family has been a member of St. Greg’s for over 30 years.
My high school was Bay View here in Milwaukee. Since then I have received a Bachelor’s Degree from the University of Wisconsin, Milwaukee in Criminal Justice and an MBA from the Keller Graduate School of Management. For over 30 years I worked for Quest Technologies, a 3M Company and retired as the Executive Vice President. My job gave me the opportunity to travel extensively in the United States, Europe, Asia and South America.
We have three sons, Christopher who is Dean of Students and Athletic Director for Nativity Jesuit Middle School, he is married to Becca and they have two daughters Audrey and Harper. Gregory who is a Director at a legal software solutions company is married to Sarah. Andrew lives with us and works at Goodwill Industries. We have all lived in Milwaukee our entire lives… so far.
There is nothing like a walk in the woods with Mary, a round of golf with any of our sons, or getting to travel with family to places that truly move and inspire.
My favorite part of ministry is being asked to listen… it is such an honor when someone trusts to share their struggles, pain, and suffering, or overwhelming joy with me. It is also pretty incredible that the Lord trusts me to share his words to us all.



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Mark Kurzynski, Director of Maintenance

414-543-8292, ext. 222 || Click Here to Email

Hello, I am Mark Kurzynski and I am the Director of Maintenance for St. Gregory the Great Parish. St. Greg's has been my parish home for many years and I have worked at St. Greg's for 5 and 1/2 years. Seeing the children each day is one of the things I enjoy the most about working at  St. Greg's. Watching them grow up is a blessing.
When I am not at St. Greg's I enjoy time with my wife Jean Ann (married 24 years) and son, Ryan-19. We enjoy taking trips up north and someday I hope to retire there. There is nothing like the peace of being surrounded by God's creation. 
One of my great interests is helping those who struggle with alcohol and drug dependency. Helping them manage their anxiety and depression as they find a new life without their dependency is both challenging and rewarding.



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 Patti Penkalski, Director of Administrative Services

414-543-8292, ext. 219 ||  Click Here to Email

Thank you for visiting our website! I am Patti Penkalski and I am the Director of Administrative Services for St. Gregory the Great Parish. I graduated from Mount Mary University with a Bachelor's Degree in Business Administration.
My responsibilities at St. Greg's include: personnel, salaries and benefits, finances of the school and parish, facilities management, and stewardship initiatives. 
I have two adult children, Andy and Lauren, and an adorable grandson, Luca.
I am a lifelong, die-hard Brewer fan! And when I am not at a game, there is nothing better than spending time with friends and family over a great dinner and wonderful wine – good food and conversation are at the top of my list of hobbies! 
I love the St. Greg's community because whenever there is a need, our parishioners rise to the occasion. The support system among the staff is incredible – when times are hard, someone is there to lend a hand. When times are good, they are the first to share in your joy!






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Michelle Zakula, Pastoral Associate

414-543-8292, ext. 216 || Click Here to Email

Greetings! I am Michelle Zakula, and I have been the Pastoral Associate of St. Gregory the Great since 2013. Pastoral Care and Justice & Charity are two of my main ministries at St. Greg's. I feel blessed to journey with people at all stages of life and to serve them during their deepest times of need. In addition to these ministries, you might also find me leading a lesson in the school or assisting with formation activities. This is because I began my ministry as a Catholic school teacher. 
I attended Alverno College for my teaching degree and later continued my education in religious studies at both Cardinal Stritch University and St. Francis Seminary. 
My husband Dan and I have been blessed with two children--Sarah and Andrew. Andrew will play baseball for UW-Oshkosh in the fall of 2019, and our entire family will cheer him on! Sarah will graduate from college and begin her career as a graphic designer in December of 2018. 

In my free time I enjoy reading, arts & crafts, traveling, and spending time with my extended family and friends. 



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 Amy Schlegel, Principal

414-543-8292 ext.228 || Click Here to Email

I am thrilled to serve as the new principal of St. Gregory the Great. I come to St. Greg’s with a strong belief in Catholic education. I have 23 years of experience teaching in the Archdiocese of Milwaukee and have served in many leadership capacities during these years. In addition, I have been a Catholic school parent for the past 12 years. I attended Mount Mary University for both my undergrad and graduate studies and completed my administrative certification at Concordia University. My husband Jim and I have a 16-year-old son, Adam, and a 13-year-old daughter and we live on the northwest side of Milwaukee. My daughter, Libby, is attending St. Greg’s this year in the 8th grade. My personal mission is to motivate, educate, and inspire others to be their best. I look forward to collaborating with others to provide a safe, supportive environment that fosters self-discipline, motivation, Christian values, and excellence in learning. I am excited about the opportunity to get to know the students and families of the St. Gregory the Great community.



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Cindy Bremeier, Director of Liturgy, Confirmation/Baptism/Matrimony

414-543-8292 ext. 213 || Click Here to Email

I am Cindy Bremeier and I am the Director of Liturgy and the Coordinator of Baptisms and Weddings. I have worked at St. Greg's for over 20 years--15 of them full time. I enjoy my ministry because it brings me in to contact with people of all ages at the most memorable times of their lives. I enjoy working with children--training them as Acolytes or preparing them for special occasions like Quinceaneras. I also assist with all areas of liturgy including training Eucharistic Ministers and Lectors.
I have been married to my husband, Tom, for 40 years and together we have 4 children--all who graduated from St. Gregory the Great School. I also have 7 grandchildren with one more on the way! I love being a grandmother! I babysit as often as I can. In addition to being with my grandchildren, I also enjoy crafts of all kinds. I have made wedding veils and baptismal gowns for my family, in addition to sewing each dress that I wore for the weddings of my children.
Tom and I have been parishioners at St. Greg's for 39 years and I am most drawn to the friendly and welcoming spirit of the parishioners. We had many people "adopt" our family as the children grew up. I am so blessed to share my love of the Eucharist with this community!








Charlotte Vilwock

Charlotte Villwock, Director of Music Ministry

414-543-8292 ext. 220 || Click Here to Email

Hello, everyone;

On July 2, 2018, I was privileged to be the newest staff member of St. Gregory the Great Parish. As the Director of Music, I am responsible for the Adult Choir, Resurrection (funeral) Choir, all Masses, weddings and funerals. 

My studies include an undergraduate degree in choral and instrumental music from the University of Wisconsin-Superior, and a Master's degree from St. Francis Seminary. My eventual parish career began in seventh grade when my piano teacher (a nun, of course!) asked if I would like to play some morning weekday Masses at my school parish. During high school and college I continued with part-time weekend services for several Catholic and non-Catholic churches. Although I had a few years working in the manufacturing sector (Badger Die Casting and Allen-Bradley), I eventually drifted back to what I enjoyed most-parish music ministry.

I am married to Keith, and we have two adult children: Tammy and Jacob. Our home is in Muskego which is an easy commute to St. Greg's. In my spare time I enjoy baking, reading newspapers and magazines and checking out the newest restaurants in town.

St. Greg's has a reputation for being a very welcoming community, and I can attest to that! If you're reading this as a way to learn about the different parishes in the area, please pay us a visit to experience our community firsthand. By the way-- how's your singing voice? 

Charlotte Villwock

Director of Music Ministry





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Peg Kasun, Director of Children's Choirs

414-543-8292, ext. 240 || Click Here to Email

Hello, I am Peg Kasun!
I first came to St. Greg’s in 1997 as a weekend musician. In 1998, I started the Children’s Choir. This program has blossomed to 60 singers, encompassing the Youth Choir (grades 3-4) and Schola Cantorum (grades 5-8). The choirs sing for school masses and two weekend masses per month. They have performed in nationally-televised masses through Heart of the Nation; sang the National Anthem for the Milwaukee WAVE and Admirals; and appeared in concert with nationally recognized Catholic composers Janèt Sullivan Whitaker, Marty Haugen, and Jesse Manibussan. They sing in many languages, play percussion instruments and hand bells, and are trained as cantors.
When I was in sixth grade, the School Sisters of Notre Dame welcomed me into their folk choir. This is where I first felt the presence of God through music ministry, which is my best form of prayer. Today I am honored to work with the wonderful students at St. Greg’s, helping them grow as singers, music ministers, and leaders of their church community. 
I also serve as a music minister at our collaborating parish, Our Lady of Lourdes. I started at Lourdes in 1993, and am now their Director of Music Ministry. It is a blessing to serve these two communities through the ministry of music. Currently, I am on the Board of the Archdiocesan Liturgical Musicians Association (ALMA), and also enjoy spending time with my husband and three kids.








 Jane Catherine Hanley

                               Jane Hanley Gerrits, Parish Secretary                                  

414-543-8292 Ext. 210 || Click Here to Email

Hi, I am Jane Catherine, I am the secretary for St. Gregory the Great Parish. I joined the parish in 2001 with my soon-to-be husband, Dennis (originally from St. Leonard's in Muskego) and we were married here in October of 2002. Along with our very large extended families, we have enjoyed being a part of many gatherings over the years including fish fries & shrimp dinners, rummage sales, Christmas Eve concerts, and numerous 'Always the Weekend After Labor Day' festivals - (not to mention we always buy our Christmas tree here, sold right off the parking lot by the Boy Scouts)! The Masses celebrated are the special center of St. Greg's - I feel blessed to work with and for the staff and parishioners that come together to worship and celebrate the everyday and special events that are part of their lives. When not in the Parish Office, I am getting together with my mom and four sisters and brothers-in-law along with many nephews and nieces (now living all over the place including  Rochester, Minnesota; Athens & Atlanta, Georgia; New Haven, Connecticut; Philadelphia, Pennsylvania; Ft. Hood, Ft. Gordon, and Ft. Knox; Iowa, Muskego and Milwaukee).  I love taking walks around the neighborhood, and especially curling up in the big chair and watching old black and white movies. Thank you St. Greg's for making me feel so welcome!