|First Appearance:||I, Darrin, Take This Witch, Samantha|
|Last Appearance:||The Truth, Nothing but the Truth, So Help Me Sam|
|Portrayer:||Dick York (Seasons 1-5)|
Dick Sargent (Seasons 6-8)
Bill Mumy (as Darrin the Boy)
Gene Andrusco (as Marvin)
|Nickname:||see Darrin's Nicknames|
McMann & Tate
|Children:||Tabitha Stephens (daughter)|
Adam Stephens (son)
|Family:||Frank Stephens (father) |
Phyllis Stephens (mother)
|Relatives:||Helen (cousin) |
Uncle Albert (great-uncle) 
Darrin the Bold (ancestor)
Madge (aunt, mentioned) 
Frank (great-grandfather, mentioned) 
|Residence:||1164 Morning Glory Circle|
Darrin Stephens is the mortal husband of Samantha, the father of Tabitha and Adam, the son-in-law of Endora and Maurice, the nephew-in-law of Aunt Clara and Uncle Arthur, the cousin-in-law of Serena and he is the son of Phyllis and Frank Stephens.
Darrin meets Samantha and falls in love with her. After marrying her, she tells him she is a witch and proves herself. At first, Darrin does not know what to do, but decides he loves her and cannot give her up. He wants Samantha to learn to live like a mortal, believing witchcraft is not a "proper" way to live. Samantha complies, but cannot give up her witchcraft completely. Darrin also wants their children, Tabitha and Adam, to be raised as mortals, but understands that witches cannot be banned from using witchcraft - they can only be taught when and when not to use it. He is especially harsh with Tabitha because of her headstrong nature.
Darrin first meets Samantha's mother, Endora, who hates mortals, so she casts spells on him for her own amusement, while her father, Maurice disapproves of "mixed" marriages and has a terrible temper. When he first meets Darrin, he "disintegrates" him with the wave of his hand. Endora and Samantha lose their tempers with Maurice and order him to bring Darrin back. Samantha tells her father she loves Darrin and not to take him away from her, and he relents. The only two members of Samantha's family who even come close to liking him are Samantha's Aunt Clara and her Uncle Arthur.