Mark is a chef, and was portrayed as being "down-to-earth" and keen to settle down. He attracts the attentions of several female characters, but producers established a romantic relationship between him and Annalise Hartman (Kimberley Davies), which resulted in their engagement. During their wedding, Mark announces that he wants to dedicate his life to God and become a priest. Samazan believed the storyline gave both Mark and Annalise longevity. Mark's religious beliefs annoy his friends and neighbours, and Samazan described Mark as "pretty fanatical". The storyline led to Samazan's departure, as he felt the producers wanted to take his character in a different direction than he wanted. Mark's exit aired on 29 November 1995, as he leaves Erinsborough to pursue a career as a TV chef. Samazan reprised the role for the show's 35th anniversary celebrations, and his return scenes aired on 26 February 2020.