<Li> Brett Dier as Michael Cordero, Jr. (seasons 1--3; guest season 4), Jane's 29 - year - old husband who was a detective . He is aware of Petra's affair, and blackmails her to ensure that her marriage remains intact, so that Jane will give the baby to them, however later he decides to support Jane's decision to keep the baby . He also dislikes Rafael due to Jane's, and eventually Rafael's, attraction to one another . He is the head detective in the hunt for Sin Rostro, a high - profile drug dealer who seems to be based in the Marbella Hotel, however he later quits to become a lawyer . Jane and Michael get married in the season two finale . He apparently dies in season three by an aortic dissection caused by a gunshot . In the Season 4 finale, it is revealed that Michael is still alive . </Li> <Li> Jaime Camil as Rogelio de la Vega, a self - involved, famous telenovela star and Jane's biological father . He is currently trying to gain a relationship with his newly discovered daughter . He also has feelings for Xiomara, who was his girlfriend in high school . He marries Xiomara in the season three finale . </Li> <Li> Elias Janssen as Mateo Gloriano Rogelio Solano Villanueva (season 4), Jane and Rafael's baby . Named after Jane's grandfather and Alba's husband, who died before Jane was born . <Ul> <Li> Aria Rose Garcia as toddler Mateo Gloriano Rogelio Solano Villanueva . Joseph Sanders played the role in the third season . </Li> </Ul> </Li> <Ul> <Li> Aria Rose Garcia as toddler Mateo Gloriano Rogelio Solano Villanueva . Joseph Sanders played the role in the third season . </Li> </Ul>

Who plays baby mateo on jane the virgin