Mark Brennan

Career overview

Role: Meticulous television and film archivist.
Task: Write a career overview of Mark Brennan (Acting).
Constraints:
Use ONLY verifiable facts from provided sources.
No inventions, guesses, or omissions of missing details.
Write original, neutral, encyclopedic prose.
Format: Plain text only (no markdown, no asterisks, no headings, no bullet points).
Length: 180-260 words.
Structure: 2-3 short paragraphs.
Subject: Mark Brennan (Acting).
Source [1]: Mark Brennan (TMDB) - Known for Acting, 6 known credits.
Source [2]: Mark Brennan (IMDb) - Actor: Transplant. Known for Transplant (2020).
Source [3]: Mark Brennan (Wikipedia) - Fictional character from Australian soap opera Neighbours, played by Scott McGregor. First appearance: 30 August 2010. (Note: This is a character, not the actor, but the prompt asks for "Mark Brennan (Acting)". I must distinguish between the actor and the character if they are different, or focus on the actor if that's the intent. The prompt asks for "Mark Brennan (Acting)". Source [4] refers to an actor named Mark Brennan).
Source [4]: Mark Brennan (TMDB) - Actor. Work includes: The Freddie Mercury Story: Who Wants to Live Forever?, The Crown, The People Next Door, River, White Gold, and The Flatshare.
Source [5]: Mark Brennan (British Comedy Guide) - Actor and producer.
Source [6]: Dana Andrews (Wikiwand) - Mentions "Mark McPherson" (character) and "Walter Brennan" (actor). This is irrelevant to a career overview of Mark Brennan unless he is related, but the sources don't state that.
Note on Source [3]: This describes a fictional character named Mark Brennan. The prompt asks for a career overview of "Mark Brennan (Acting)". Usually, this implies the person. However, Source [4] lists credits for an actor named Mark Brennan. I will focus on the actor.
Actor Details:
Profession: Actor and producer [5].
Credits: Transplant (2020) [2], The Freddie Mercury Story: Who Wants to Live Forever? [4], The Crown [4], The People Next Door [4], River [4], White Gold [4], and The Flatshare [4].
Total known credits: 6 [1].
Drafting Paragraph 1:
Mark Brennan is an actor and producer. His professional work includes various television and film credits. He is known for his role in the 2020 production Transplant.
Drafting Paragraph 2:
His filmography includes several notable titles. His work has been featured in The Freddie Mercury Story: Who Wants to Live Forever?, The Crown, The People Next Door, River, White Gold, and The Flatshare. According to The Movie Database, he has six known credits in his acting career.
Refining and checking word count:
Current draft:
Mark Brennan is an actor and producer. His professional work includes various television and film credits. He is known for his role in the 2020 production Transplant.

His filmography includes several notable titles. His work has been featured in The Freddie Mercury Story: Who Wants to Live Forever?, The Crown, The People Next Door, River, White Gold, and The Flatshare. According to The Movie Database, he has six known credits in his acting career.

Word count: ~75 words. This is too short (Target: 180-260).
Wait, I need to expand using ONLY the provided facts.
If the facts are sparse, I cannot invent details to