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== Allison Sirella / Mary Latham ==
'''Allison Sirella''' (also known as '''Mary Latham''') is a central character in the ''Quincy, M.E.'' Season 7 episode, "[[Memories of Allison]]", originally aired on March 3, 1982. She is portrayed by actress [[Sharon Acker]].

=== Character Overview ===
Allison Sirella first appears as a troubled woman plagued by disturbing dreams and fragmented memories. Her behavior is erratic, emotional, and unpredictable, placing her at the heart of a forensic investigation led by Dr. Quincy. As the episode unfolds, it is revealed that she is actually '''Mary Latham''', a woman who had repressed her traumatic past and taken on a new identity following a psychological breakdown.

=== Role in the Episode ===
Initially dismissed by authorities as unstable, Allison becomes Quincy's most important witness—and perhaps the key to solving the mystery surrounding a decades-old crime. As Quincy digs deeper, he discovers that Allison’s recurring visions are not hallucinations but repressed memories tied to a violent incident in Mary Latham’s youth.

Allison/Mary must confront her buried trauma to help expose the truth, with Quincy's forensic expertise guiding the way. Her emotional confrontation with the past is one of the most intense moments of the series, highlighting themes of memory, trauma, and justice.

=== Portrayal ===
Canadian actress [[Sharon Acker]] delivers a powerful performance in the dual role of Allison Sirella and Mary Latham. Her portrayal captures both the fragility and resilience of a woman grappling with identity and buried trauma.

=== Significance ===
The character arc of Allison/Mary stands out in the series for its psychological depth and emotional weight. Her transformation from perceived instability to a courageous witness challenges assumptions about mental illness and trauma. The episode exemplifies *Quincy, M.E.*’s focus on the human side of forensic science.

=== Internal Links ===

* Appearance in [[Memories of Allison]]

=== External Links ===
* [https://www.imdb.com/title/tt0681771/ "Memories of Allison" episode on IMDb]
* [https://en.wikipedia.org/wiki/Sharon_Acker Sharon Acker on Wikipedia]