Martha Finney-Lorraine

"Martha is the [protagonist] of the show. She is outspoken, honest, loyal, kind, and very talkative! Although she is bilingual (speaking human and dog), she sees the world from a dog's point of view. She can also translate what most other animals are saying.' - description from PBS website"

Martha Finney-Lorraine is the main and titular character is the TV show, Martha Speaks. When Martha eats alphabet soup, the letters go to her brain, and she then has the ability to talk. She eats alphabet soup every day.

Personality
Martha, like most dogs, is very energetic and happy but does get grumpy at times when someone irritates her. She is nice but usually likes to get her way. She also loves to eat and her favourite foods are steak, biscuits, and alphabet soup.

Appearance
Martha is a mutt, meaning she is a mixed breed of many dog breeds. She has mentioned, Labrador Retriever and Pitbull in the show. Her collar is red with a metal I.D. tag. Her ears are a darker brown than the rest of her body, which is yellow. She has white on her paws and muzzle.

Helen
Helen is Martha's owner, and Martha admires her a lot. They are best friends, even though they get cross with each other once in a while. Adopting Martha was also Helen's idea.

Skits
Skits is Martha's adopted brother, and they are very good friends. Sometimes they fight, like over a toy or food, but they are mostly friends. When the Lorraine family got Skits, Martha was jealous, but eventually, she outgrew it.

Jake
Martha and Jake are generally good friends, Martha cleaning up Jake's spilt food and helping him speak. Jake was once scared of Martha's cone but never has any problems with Martha herself. He also can say "dog" and almost say Martha's name.

Mariella
Martha will call Mariella anything from "Mom" to "Mariella" to "Mrs Lorraine". Although sometimes Mariella shouts out Martha's name angrily and/or tells her off when Martha does something wrong, Martha does care about Mariella as evidenced when she tried to flag down vehicles when Mariella was in labour and to do favours for Mariella in My Mother, the Dog.

Daniel Lorraine
Their relationship is neutral. On one hand (paw?), Danny sometimes yells at Martha. On the other hand/paw, Martha did try to flag down those vehicles when Mariella was in labour. She also calls him "Dad" even though he is obviously not her real dad. Daniel was also the one who adopted Martha.

Lucy Lorraine
Martha likes Grandma Lucille and wants what's best for her, but they do conflict a bit due to Lucille's neat freak tendencies. Martha calls her Grandma Lucille, even though she is not Martha's grandma.

Martha's Mom
Martha and her mother got on very well as puppies, and, as with her siblings, the mother licked and suckled Martha and told her to use her bark to get what she wanted. Martha was a bit clingy to her mother, which meant she didn't get adopted on the same day as her siblings, and when Martha got carried away by the river, her mom thought she'd run away. Now, they still get along fine.

Skipper
Martha and Skipper get along fine, although not much is known about their relationship.

Cam
Martha and Cam get along fine. He and Mack helped find Martha's mother.

Carusoe
Martha and Carusoe get along fine, but not much is known about their relationship.

Mr. Felix
Martha and Mr. Felix get along fine, although she does think it's a bit odd that he's outgrown playing in the mud.

Number 6
Martha gets along very well with her unnamed sister, and when a delivery truck nearly ran her over, Martha barked at the driver, leading the driver to adopt Martha's mother and foster the litter.

Mack
Martha and Mack get along fine. He and Cam helped her reunite with her mother.

Sarge
Martha and Sarge have a bit of a sibling rivalry, due to Sarge being a bit intimidating, but they don't hate each other.

T.D.
T.D. and Martha get along very well because they have mostly the same ideas about certain things. Martha has attempted to teach T.D. to talk dog at his request.

Alice
Alice and Martha's relationship is neutral. They don't fight, but they don't converse too much.

Truman
Martha and Truman seem to trust each other a lot and be great friends.

Francois
Martha finds Francois a bit annoying and sometimes gets jealous of him, mostly because he is demanding and because she once got the blame for something he did. Despite this, they are good friends and help each other when doing dog stuff together.

Carolina
They have generally a neutral relationship. Carolina sometimes finds Martha a bit annoying but that's just because she doesn't understand dogs very much.

Rinty, Cisco and Bert
These three are all very good friends of Martha's. They have a relationship which could be described as "chummy". When the four of them, plus Ruby, Francois, Skits, Miranda, Estelle, Pops, John and the puppy triplets are together, Martha calls them "the pack".

Miranda and Estelle
They met at the pound and look up to one another, but their relationship is not explored very much.

Pops
They met in the pound. Martha once noted that "he's elderly and we get along just fine".

Butterscotch, Streak and Mandarin
She met these three in the pound too. She is good friends with them but finds them a bit hard to understand as sometimes as their barks are hard to make out, which Martha thinks is because of their young age.

Kitten
Their relationship started off bad because Martha was prejudiced against cats. However, when Kitten nearly got run over and Martha taught him how to cross the road, they became buddies and he helped her shed her prejudices, which led to her helping her dog friends shed their own prejudices.

Polly
Martha can find Polly a bit annoying, saying rude things like "you need help!" to her, but deep down, they are friends, as evidenced when she helped teach Polly words.

Mrs Demson
These two, although they have worked together in the past, usually have an antagonistic relationship as Mrs Demson doesn't like animals and has a hard time remembering Martha's name, and Martha is scared of Mrs Demson.

Nelson
She just doesn't like him for some reason.

Bob
Martha and Bob's relationship is a mixed bag. Martha initially saw the good in him and called him a good dog, but she is intimidated by him. Ironically enough, she refers to him as "not so good" in There Goes the Neighborhood.

The Lee Family
Before she knew Milo existed, she didn't like him as she thought Skits was more interested in his "imaginary" friend than his real friends. Likewise, before his dad Terrence knew Martha existed, he didn't like her very much as he thought T.D. was making up stories about talking dogs. However, when they met, they became very good friends. Martha also cares greatly for Lily, as evidenced in The Puppy Tooth Fairy.

The Parkingtons
Martha didn't really interact with them up until Martha Gets Spooked, when Mrs Parkington thought Martha's voice was that of the ghost of her deceased great-aunt who is also named Martha. Martha also borrowed ingredients off of the Parkingtons in Martha Bakes.

Kazuo
Martha and Kazuo get along fine, although when he first found out that she could talk, he had trouble understanding. He was the one who found her as a puppy and eventually got her adopted.

Trivia

 * she talks Martha says she is "against dogs in clothes" in Martha Models, but doesn't seem to mind Skits being in a raincoat in Martha the Weather Dog.
 * She is called "Martha Mutt" by Mrs Demson in Martha the Witness and "Martha Lorraine" by Tyrone Daniel "T.D." Kennelly and Mrs. Clusky in Martha Goes to School. In Martha the Witness, she refers to herself as "just Martha", so she likely doesn't have a surname.
 * Her first words, as far as we know, were "Is it time for dinner yet?".
 * she is a talking dog