Callum Keith Rennie’s 10 Best Acting Roles (Including Star Trek: Discovery)
Warning: SPOILERS for Star Trek: Discovery season 5
Summary Callum Keith Rennie has a diverse acting history with impressive roles in movies and TV shows.
Rennie excels at portraying complex characters with depth and nuance.
His latest role as Captain Rayner in Star Trek: Discovery season 5 showcases his bold and promising acting skills.
Callum Keith Rennie, who plays the Kellerun Captain Rayner inStar Trek: Discoveryseason 5, has a distinguished and impressive acting career, and here are Rennie's 10 best movie and television roles. Born in Tyne and Wear, NE England, UK, Rennie moved to Canada with his family at a young age. Rennie successfully launched his acting career with appearances in several critically acclaimed films, includingHard Core Logo- a rock band mockumentary, and several notable television guest roles, including appearances onThe X-Files, Highlander,andOuter Limits.
Rennie's international big break came from his casting inDue South, leading to multiple support, guest-star, and leading roles in a number of movies and television series. A keen painter and creative, Callum Keith Rennie's acting style and character choices reveal a preference for unexpected and complex roles - portraying multiple levels of personality and understanding through various mediums and genres. Rennie has established a name in science fiction, in particular, starring inBattlestar Galactica, Marvel's Jessica Jones, The Umbrella Academy, and, more recently, joining theStar Trek: Discovery season 5 castas Captain Rayner.
Related Every Upcoming Star Trek Movie & TV Show The Star Trek franchise on Paramount+ continues with new series and made-for-streaming movies as well as more Discovery and animated shows.
10 Memento (2000)
Callum Keith Rennie as Dodd
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Memento, a psychological neo-noir thriller released in 2000, delves into the intricate nature of memory and perspective through the eyes of its lead character, Leonard Shelby (Guy Pearce). Directed by Christopher Nolan, Memento cleverly portrays Leonard's struggle with anterograde amnesia by presenting scenes in reverse order in color and chronological sequences in black and white. Alongside Pearce, Callum Keith Rennie shines as Dodd, a drug dealer entangled in Leonard's quest to find his wife's killer.
Memento's exploration of deception within a criminal environment adds complexity to the narrative as Leonard navigates a world where trust is scarce. Leonard grapples with his condition by relying on tattoos, polaroid photographs, and Post-it notes to piece together his fragmented memories. Memento's unique storytelling approach has garnered a dedicated following among fans of the genre. Rennie's portrayal of Dodd, a character wrestling with morality and deception adds depth to the film's narrative, making Memento a memorable and thought-provoking cinematic experience.
9 Fifty Shades of Grey (2015) & Fifty Shades Freed (2018)
Callum Keith Renne plays Ray Steele
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InFifty Shades of GreyandFifty Shades Freed, the feature film adaptations of E.L. James' erotic novels, Callum Keith Rennie stars as Ray Steele, the stepfather of Anastasia Steele (Dakota Johnson). Separated from Anastasia's mother, Carla May Wilks (Jennifer Ehle), Ray takes on the parental role and meets love interest Christian Grey (Jamie Dornan) in the first Fifty Shades movie. Considered by Anastasia to be her 'real father,' Ray shares the technical term of stepfather with Carla's new husband.
Sharing a practical and down-to-earth selection of interests with Dornan's Christian Grey, Ray Steele is a warm and caring family character who plays a significant role in the heroine's life. Callum Keith Rennie's portrayal of the character is natural and easy, revealing a comfortable warmth and consistency throughout both movies. While not a leading role here, Rennie's performance is rich and appropriately understated.
8 The Firm (2012)
Callum Keith Rennie as Ray McDeere
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A high-quality and captivating legal-thriller drama series, AXN'sThe Firm is based on John Grisham's novel of the same name - picking up where the book (1991) and Tom Cruise movie (1993) ended. Following the experiences of lead character Mitchell McDeere (Josh Lucas) and his family as they emerge from witness protection ten years later and face the realities of that change, continuing danger, and their own troubling past experiences. In The Firm,Callum Keith Rennie plays Ray McDeere, Mitch's brother. Ray is a detective working for Mitch's new law firm with his girlfriend Tammy (Juliette Lewis), operating from a small former travel agency. It's an exciting and varied role showcasing Rennie's easy adaptability and creative flair.
7 Impulse (2018)
Callum Keith Rennie plays Nikolai
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In the YouTube Premium series Impulse, Callum Keith Rennie delivers a captivating performance as Nikolai, a troubled yet gifted individual of Romanian descent with supernatural abilities. Originally a recurring character in Impulse season one, Rennie's portrayal of Nikolai became a central role in season two. Nikolai's traumatic childhood and subsequent actions, such as killing his abusive uncle and kidnapping Henrietta "Henry" Cole's father (Maddie Hasson), reveal a complex and deeply flawed character.
Despite his acts of violence, Nikolai is loyal and compassionate and later becomes a mentor to Henry, assisting her in controlling her own powers before meeting a tragic end at her hands. Rennie's portrayal of Nikolai underscores his versatility as an actor, bringing depth and subtlety to the character's conflicted nature. Nikolai's commitment and empathy are juxtaposed against his darker impulses and the consequences of his actions, resulting in a compelling portrayal of a morally ambiguous figure.
6 The Umbrella Academy (2019-2024)
Callum Keith Renne plays Lester Pocket / Harlan Cooper
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Callum Keith Rennie plays the enigmatic Lester Pocket in The Umbrella Academy season 3 - a character shrouded in mystery and possessing immense power that he struggles to control. To cope with his overwhelming abilities, Lester travels with a suitcase filled with cassette tapes playing white noise to drown out his surroundings and contain his deadly bursts of power. Pocket's true identity as Harlan Cooper is later unveiled, with other revelations also surfacing through the twisting narrative.
Rennie's portrayal of Lester Pocket/Harlan Cooper delves into themes of power, emotional turmoil, and the consequences of lacking control.
As Harlan strives to control and rid himself of his powers, he forms a bond with Viktor (Elliot Page), only to meet a tragic end at the hands of Allison (Emmy Raver-Lampman). Rennie's portrayal of Lester Pocket/Harlan Cooper delves into themes of power, emotional turmoil, and the consequences of lacking control. The Umbrella Academy season 3 promises a gripping narrative as the characters navigate their complex relationships and confront their inner demons.
5 Marvel's Jessica Jones (2018)
Callum Keith Rennei plays Dr. Karl Malus
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In Marvel's Jessica Jones season 2, Callum Keith Rennie portrays the enigmatic Dr. Karl Malus, a brilliant yet unethical and morally questionable scientist. Malus delves into illegal human testing to research superhuman abilities, saving Jessica Jones (Krysten Ritter) with a genetic experimentation procedure following a tragic car crash in her youth. Malus also saved Alisa Jones (Janet McTeer), Jessica's mother, from the same crash - but the more severe injuries and treatment resulted in an uncontrollable, murderous rage that required seclusion.
Dr. Malus is later kidnapped by Jessica's adopted sister, Trish Walker (Rachael Taylor), and forced to perform a similar procedure to bestow her with superhuman ability, but the operation is interrupted and leads to medical difficulties. Ultimately, Malus meets his demise after destroying his lab, believing his experiment failed. Callum Keith Rennie's portrayal of the troubled character is nuanced yet subtle, with Dr. Malus emerging as a complex and multifaceted antagonist who accomplishes great things but with, at best, mixed results.
4 Due South (1997-1999)
Callum Keith Rennie plays Detective Stanley Raymond Kowalski
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Joining the Canadian crime comedy-drama series Due South for seasons 3 and 4, Callum Keith Rennie played Polish-American Detective Stanley Raymond "Ray" Kowalski. Serving with the Chicago Police Department's 27th Precinct, Kowalski partnered with Canadian Mountie Benton Fraser (Paul Gross) and Fraser's pet wolf, Diefenbaker, to solve crimes and lead the much-loved series. Brought in to replace Dr. Raymond Vecchio (David Marciano) when the character is assigned to work deep undercover, Kowalski loosely impersonates Vecchio to protect his identity until his return.
Callum Keith Rennie's performance as Detective Kowalski is dramatic, fond, and persuasive.
Marking Callum Keith Rennie's first international recognition, his role as the easy-going and amicable police detective Kowalski showcased an accomplished performance and an accessible charisma that blended well with an interesting ensemble and subject matter. Subtly highlighting a charming range of sentimental personality quirks, Callum Keith Rennie's performance as Detective Kowalski is dramatic, fond, and persuasive.
3 Californication (2008-2013)
Callum Keith Rennie as Lew Ashby
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As Californication's Lew Ashby, Callum Keith Rennie plays a main character from the show's second season and a recurring character in seasons five and six. A record producer who asks Hank Moody (David Duchovny) to write his biography after spending time together in jail, Lew forms a close friendship with Moody and reflects many of the lead character's traits. A hedonistic chauvinist, Lew is impulsive, destructive, uncontained, and occasionally morally reprehensible. He enjoys hosting wild parties at his mansion home in Laurel Canyon, and like many of Rennie's other characters, Lew Ashby's character doesn't survive the show.
Rennie's performance intelligently balances Ashby's louder depravities and attitudes with quiet vulnerability, loneliness, and (generally) genuine good intent.
At the end of Californication season 2, Lew accidentally snorts heroin instead of cocaine and dies, but his character often appears to Hank through dreams and imaginary sequences after his demise. This unusual shift in reality and perspective casts a new light on the character. Rennie's performance intelligently balances Ashby's louder depravities and attitudes with quiet vulnerability, loneliness, and (generally) genuine good intent.
2 Star Trek: Discovery (2024)
Callum Keith Rennie as Captain Rayner
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Callum Keith Rennie joins the cast of Star Trek: Discovery season 5 asCaptain Rayner, the formidable Kellerun officer. Commanding Starfleet's USS Antares, Rayner is portrayed as disciplined and resolute, with a gruff and intelligent demeanor. Demoted for insubordination in Discovery season 5, episode 2, "Under the Twin Moons," Rayner becomes Captain Michael Burnham's (Sonequa Martin-Green) First Officer on the USS Discovery, enhancing the compelling yet challenging dynamic between the two characters.
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Star Trek: Discovery's fans have already drawn parallels between Captain Rayner and Star Trek: Picard's Captain Liam Shaw (Todd Stashwick), recognizing the characters' shared initially standoffish and unlikeable yet ultimately lovable similarities. Rennie's portrayal of Rayner is bold, impactful, and promising, offering a fresh, memorable character that hints at exciting future developments.
1 Battlestar Galactica (2003-2009)
Callum Keith Rennie as Leoben Conoy
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In Syfy's acclaimedBattlestar Galactica, created by Ronald D. Moore, Callum Keith Rennie played the enigmatic, deceptive, and pivotal character Leoben Conoy, also known as Cylon Number Two. Initially introduced as an arms dealer in the 2003 Battlestar Galactica miniseries, Rennie's portrayal of Conoy set a dark and foreboding tone that evolved as he became a prominent series regular over Battlestar Galactica's four seasons. His complex depiction of multiple versions of the Cylon model added a philosophical depth to the character.
Ronald D. Moore was an acclaimed writer-producer of Star Trek: The Next Generation, Star Trek: Deep Space Nine, and Star Trek: Voyager before he rebooted Battlestar Galactica.
Rennie skillfully explored themes of identity, morality, and spirituality, imbuing Leoben with a manipulative nature that made him a formidable and dangerous adversary and showcased the character's obsessions and profound insights. Rennie's portrayal of Leoben added intricate layers to Battlestar Galactica's underlying themes, highlighting an impressive acting prowess and an exceptional ability to bring multilayered complexities to his characters, just as Callum Keith Rennie now brings to Star Trek: Discovery.
Star Trek: Discovery is available to stream on Paramount+.

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