Fr David Garcia, OP, is a Dominican Friar who lectures at the Major Seminary and Catholic Theological Institute of Singapore in Moral Theology. He is a well-known speaker who has addressed a spectrum of issues affecting society ranging from family life, social justice, and bioethics; he has worked and/or is working with various church organisations including Office for Catechesis, Catholic Medical Guild and Caritas Singapore.

Alphonsus and Cyrine have been married for 34 years with six children and four granddaughters. They have been actively presenting the Worldwide Marriage Encounter Weekend since 2002 as well as journeying with couples in preparation for marriage. With such rich experiences, as well as their expertise in their profession as teachers, the couple has also created and conducted many enrichment sessions for catholic couples locally and overseas. They love working and journeying with couples as their mission is to reach out to other couples. Both Al & Cyrine are actively involved in the Family Life Ministry at the Church of St Vincent de Paul with the focus on parenting and child formation using the Theology of the Body framework.

John and Geraldine have been married for more than 30 years. As a couple, they feel very blessed to be parents, and grandparents to five grandchildren (for now). Between 1999 and 2020, they helped engaged couples prepare for the lifelong commitment of marriage in the Marriage Preparation Course. They have also given presentations on sexuality to young people. John was Master of the Catholic Medical Guild from 1998 to 2006, and served as the chairman of the Archdiocesan Commission for the Family from 2014 to 2017. He obtained a Graduate Diploma in Bioethics from the Pontifical John Paul II Institute for Marriage and Family in Melbourne, Australia in 2011, and is presently the host of Catholic Parents Online. As a couple, they are passionate about spreading the good news of Parenting and Sexuality Education through the lens of the Theology of the Body.