Which actor portrayed Michelle's friend Teddy on Full House?

The actor who portrayed Michelle’s friend Teddy on Full House was Tahj Mowry.

Teddy first appears in the season-five premiere, “Double Trouble,” when he meets Michelle on her first day of kindergarten. Michelle follows Joey’s advice to make friends by being funny, and Teddy becomes one of her closest childhood companions. Mowry played the character across 14 episodes from 1991 to 1995.

Teddy’s role was memorable partly because the character’s storyline continued beyond a single guest appearance. His family moves to Amarillo, Texas, in season six, but Teddy later returns when his father’s job brings the family back to San Francisco. He and Michelle even briefly consider becoming boyfriend and girlfriend as children.

Viewers sometimes confuse Mowry with his twin sisters, Tia and Tamera Mowry, who also appear on Full House as Teddy’s older sisters. Tahj later became widely known for starring as T.J. Henderson on Smart Guy and voicing Wade Load on Kim Possible.