ductless gland. [duktâ²les] a gland lacking an excretory duct, such as an endocrine gland, that secretes hormones directly into blood or lymph. ductless gland. A gland with cells that secrete specific molecules into the adjacent interstitial space (paracrine glands) or into the blood stream (endocrine glands).
Cast. 1  Michael Weatherly as Dr. Jason Bull. 2  Freddy Rodriguez as Benny ColÃ³n. 3  Geneva Carr as Marissa Morgan.  Christopher Jackson as Chunk 1  Palmer. Jaime Lee Kirchner as Danny James.  Annabelle Attanasio as Cable McCrory.
'NCIS's' Weatherly to star in CBS pilot based on young Dr. Phil. Michael Weatherly is leaving CBS's top-rated drama, NCIS, but he could be staying at the network. A fan favorite as NCIS special agent Anthony DiNozzo, Weatherly has signed on to play the lead character in Dr. Bull, a drama based on a younger version of famed TV host Dr. Phil.