• Sally Ross (
Sonja Smits), a former
economics professor and the only daughter of Cedric Ross who is one of the partners in the firm. She takes control of the firm when her father is arrested for
embezzlement, loses control of the firm back to him, and regains control on her father's death. • Adam Cunningham (
Bruce Gray), the Machiavellian elder statesman of the bank, although a junior partner to the Rosses. Like Sally, he comes from a rich family, but he fell on hard times when his father lost the family fortune. Less of a risk taker than Sally or Jack, Adam is often at odds with them. He is very much in love with his wife Gillian (
Linda Goranson), who has an unidentified illness and is lobbying to be permitted
assisted suicide. • Marty Stephens (
Patrick McKenna), the driven head trader of Gardner Ross, making the firm money through risky short term trades. Stephens often derides the senior partners as "overheads"—a double insult based on the fact that their offices are above the trading floor and, in his view, they eat up rent without bringing in any regular income. Although largely driven by money, he has a soft spot for his wife and two children. • Jack Larkin (
David Cubitt), the firm's ambitious young
investment banker and junior partner. He grew up as a
juvenile delinquent with an abusive father and got through college as a
boxer. He became a
trader in
Vancouver before coming to Gardner Ross. He is also responsible for bringing Grant Janksy into the firm. Jack dies in the Season 4 episode, "I'll Sleep When I'm Dead" after being fatally shot by Martha, an operative of Jean Paul's company. • Ann Krywarik (
Kim Huffman), the firm's female broker. She started her career by specializing in accounts held by elderly single men. She is at times Jack's paramour. She works as a broker, trader and
mutual fund manager. Grant Jansky, a colleague has feelings for her. Ann dies in the Season 3 episode, "Boomwith" after being caught in a limo explosion with the team being devastated by her death which is later revealed to be murder. • Donald D'Arby (
Rick Roberts), a young, smart and shy investment banker. He usually works for Jack and runs a mutual fund later in the series. D'Arby is from an extremely rich
lumber family. • Grant Jansky (
David Hewlett), a brilliant but disturbed
derivatives trader who despite his poor social skills is actually a genius, able to calculate numbers lightning fast in his head. He tends to keep to himself, although he is close to Donald and Jack. He is in love with Ann and often resents the way Jack treats her. In Season 3, Grant like the rest of the team is left devastated by Ann's death while a year later, during Season 4, Grant suffers another personal tragedy when in the episode, "The Old Man and the CEO", he learns that Jack has been shot and killed which has him nearly attacking Sally in a fit of rage, prompting security to drag Grant away. In "The Falcon and the Showman", Grant returns to work with a new serious demeanor and then angrily tells Sally never to speak to him again. In the Season 5 episode and series finale, "Nice Guys Finish Last", Grant is formally diagnosed as having a borderline personality disorder which has him suffering from delusions and also fits of rage. He is later given an anti-psychotic drug which proves to be a big help and results in his psychiatrist offering Grant a prescription to the drug. However, after Marty is stabbed, Grant, guilt-ridden begins blaming himself with Ziggy later visiting Grant and encouraging him to begin taking his medication again. • Chris Todson (
Chris Leavins), the firm's humorless head
currency trader. He was raised on a farm in a religion that shuns modern technology (similar to the
Mennonite), but is shunned after he had an affair with an older married woman. He is highly materialistic and has a sister named Lilly. • Ian Farnham (
Gabriel Hogan), a very handsome young investment banker, hired by Gardner Ross as a favor to his well-connected mother in order to grease the wheels of a pending deal, although Ian is unaware of this fact. • Benny Siedleman (Ron Gabriel), the firm's primary bond trader, and the oldest man on the trading floor. He was Marty's first boss. • Ziggy McLeod (
Angela Vint) is the firm's receptionist early in the series. Later, she becomes a trainee on the trading floor. • Niko Bach (
Rachael Crawford) is brought into Gardner Ross by Phil Hoagland after he takes control of Gardner Ross. She is beautiful, exotic and a brilliant trader. She is the only trader Marty feels is capable of succeeding him as head trader. She has a short, kinky love affair with Chris. • Cedric Ross (
David Gardner), the "Ross" in Gardner Ross, and Sally's father. Sally eventually finds out that he was deeply involved in several illegal financial transactions, and attempts to keep him out of the firm. Although he regains control, his double life leads to his murder shortly thereafter, and Sally once again becomes the senior partner. • Paul Deeds (
Peter Stebbings) is brought into Gardner Ross by Phil Hoagland after he takes control of Gardner Ross. Paul is young, brilliant, but unprincipled investment banker. He steals research material from David Astin (
William Pappas). ==Main crew==